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cyan · cool

#598677

a dark, soft cyan · cool · closest name: Dark Cyan

Token name suggestion: Slate Reef

RGB
89, 134, 119
HSL
160°, 20%, 44%
CMYK
34, 0, 11, 48
Luminance
0.2051

#598677 is a dark soft cyan, 160° on the wheel and 67/100 on the cool side. Put black text on it (5.10:1). As text it scores 4.12:1 on white — large text only. Nearest name is Dark Cyan, nearest Tailwind family is teal.

hsl(160 20% 44%)rgb(89 134 119)Base step 700AA inkCool

At a glance

Every number on this page in one read: what #598677 is made of, how bright it looks, and which way it leans.

Hex
#598677
Hue
160°
cyan
Saturation
20%
soft
Lightness
44%
dark
Brightness
53%
HSV value
Perceived
47%
weighted brightness
Luminance
0.2051
WCAG relative
Temperature
Cool
67/100 cool
Color family
Cyan
Tone
Soft
Best ink
Black
5.10:1
Closest name
Dark Cyan
ΔE2000 10
Chroma
19.2
LCH, 0–130ish
OKLCH L
0.583
perceptual lightness
Tailwind
teal
500 · ΔE 17
Web-safe
#669966
nearest of 216
Where it sits
Hue160° of 360°
Saturation20%
Lightness44%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #598677.

Temperature
Warm ← → Cool67% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red10%
Green83%
Blue6%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#598677
HEX (8-digit)#598677ff
RGBrgb(89, 134, 119)
RGBArgba(89, 134, 119, 1)
HSLhsl(160, 20%, 44%)
HSV / HSBhsv(160, 34%, 53%)
HWBhwb(160 35% 47%)
CMYKcmyk(34%, 0%, 11%, 48%)
LABlab(52.4 -18.9 3.2)
LCHlch(52.4 19.2 170.4)
OKLCHoklch(0.583 0.055 171.4)
XYZ (D65)xyz(15.97, 20.51, 20.57)
Decimal5867127
Display P3color(display-p3 0.349 0.525 0.467)
Web-safe#669966

Copy-ready code

every platformclick to select
/* CSS */
color: #598677;
background-color: #598677;
/* CSS custom property */
--brand: #598677;
/* Tailwind (arbitrary) */
class="text-[#598677] bg-[#598677]"
/* SCSS */
$brand: #598677;
/* SwiftUI */
Color(red: 0.349, green: 0.525, blue: 0.467)
/* UIKit */
UIColor(red: 0.349, green: 0.525, blue: 0.467, alpha: 1)
/* Android XML */
<color name="brand">#598677</color>
/* Android Compose */
Color(0xFF598677)
/* Flutter */
Color(0xFF598677)
/* Python / OpenCV (BGR) */
(119, 134, 89)
/* Python / PIL (RGB) */
(89, 134, 119)
/* Java AWT */
new Color(89, 134, 119)
/* .NET */
Color.FromArgb(255, 89, 134, 119)
/* OpenGL / Unity (0–1) */
(0.3490f, 0.5255f, 0.4667f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{89,134,119}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #598677 85%, white);
border-color: color-mix(in oklab, #598677 40%, transparent);
/* theme-aware in one line */
color: light-dark(#334D44, #DAE7E2);
/* relative colour syntax */
--hover: hsl(from #598677 h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F6F9F8;
  --brand-100: #EDF2F1;
  --brand-200: #D8E4E0;
  --brand-300: #BCD2CB;
  --brand-400: #9ABCB1;
  --brand-500: #78A596;
  --brand-600: #629383;
  --brand-700: #598677;
  --brand-800: #416257;
  --brand-900: #324941;
  --brand-950: #1F2D29;
  --brand: #598677;
  --brand-ink: #000000;
  --brand-surface: #F6F9F8;
  --brand-border: #CEDED9;
  --brand-hover: #4B7064;
  --brand-pressed: #3C5B51;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #16221E;
    --brand-ink: #DAE7E2;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6F9F8',
        100: '#EDF2F1',
        200: '#D8E4E0',
        300: '#BCD2CB',
        400: '#9ABCB1',
        500: '#78A596',
        600: '#629383',
        700: '#598677',
        800: '#416257',
        900: '#324941',
        950: '#1F2D29',
        DEFAULT: '#598677',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6F9F8,
  '100': #EDF2F1,
  '200': #D8E4E0,
  '300': #BCD2CB,
  '400': #9ABCB1,
  '500': #78A596,
  '600': #629383,
  '700': #598677,
  '800': #416257,
  '900': #324941,
  '950': #1F2D29,
);
$brand-base: #598677;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6F9F8", "$type": "color" },
      "100": { "$value": "#EDF2F1", "$type": "color" },
      "200": { "$value": "#D8E4E0", "$type": "color" },
      "300": { "$value": "#BCD2CB", "$type": "color" },
      "400": { "$value": "#9ABCB1", "$type": "color" },
      "500": { "$value": "#78A596", "$type": "color" },
      "600": { "$value": "#629383", "$type": "color" },
      "700": { "$value": "#598677", "$type": "color" },
      "800": { "$value": "#416257", "$type": "color" },
      "900": { "$value": "#324941", "$type": "color" },
      "950": { "$value": "#1F2D29", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #598677 · 5.10:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 4.12:1
AA fail · AA large pass · AAA fail
Aa
Black text · 5.10:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #598677 as text scores 4.12:1 on white and 5.10:1 on black.
Best tinted ink on it, if plain black or white feels flat: #334D44 at 2.23:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#537D6F · 4.63:1
AA on white−3% L
#537D6F
The quick fox
#3E5E54 · 7.16:1
AAA on white−13% L
#3E5E54
The quick fox
#598677 · 5.10:1
AA on blackalready passes
#598677
The quick fox
#6E9F8F · 7.02:1
AAA on black+9% L
#6E9F8F

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #598677 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#598677 on white: 4.12:1
AA ✗ fail · AA-large · AAA
Aa
#598677 on black: 5.10:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #598677 as text on that neutral, and that neutral as text on #598677.

NeutralRatioBoth directions
White4.12:1AaAa
Slate 503.93:1AaAa
Slate 1003.76:1AaAa
Slate 2003.34:1AaAa
Slate 3002.77:1AaAa
Slate 4001.61:1AaAa
Slate 5001.16:1AaAa
Slate 6001.84:1AaAa
Slate 7002.52:1AaAa
Slate 8003.55:1AaAa
Slate 9004.34:1AaAa
Black5.10:1AaAa
Colour vision deficiency
true color
protanopia · #838076
deuteranopia · #7C7B78
tritanopia · #4D8781

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #598677 is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F6F9F8
#EDF2F1
#D8E4E0
#BCD2CB
#9ABCB1
#78A596
#629383
#598677
#416257
#324941
#1F2D29
Base = 700Lightest = 50 · #F6F9F8Darkest = 950 · #1F2D29Text step on white = 800
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.014 171.4);
  --brand-100: oklch(0.94 0.022 171.4);
  --brand-200: oklch(0.88 0.033 171.4);
  --brand-300: oklch(0.80 0.043 171.4);
  --brand-400: oklch(0.72 0.050 171.4);
  --brand-500: oklch(0.64 0.055 171.4);
  --brand-600: oklch(0.56 0.055 171.4);
  --brand-700: oklch(0.48 0.051 171.4);
  --brand-800: oklch(0.40 0.046 171.4);
  --brand-900: oklch(0.32 0.038 171.4);
  --brand-950: oklch(0.24 0.030 171.4);
}

Colors that work with #598677

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F6F9F8
Tinted page background
Border#CEDED9
Hairlines and dividers
Muted text#5C8A7A
Captions on the surface
Accent#8A5474
Second voice, not a rival
Dark variant#334D44
Hover, pressed, headers
Light variant#F0F5F3
Selected rows, tints
Dark surface#16221E
Dark-mode background
Hover#4B7064
One step down in lightness
Pressed#3C5B51
Two steps down
Disabled#96B9AD
Chroma pulled out
Focus ring#559E86
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #598677

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Headings from 24px up on white
  • Text and icons on dark surfaces
  • Charts, tags and secondary surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Small text on white — under 4.5:1
  • Black text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
24px / 18.66px bold
Safe as a fill behind white type
No — use #334D44
Safe as a 1px border on white
Yes

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

cleantechnicalfreshclinical

Cyan reads as water, air and infrastructure: cool, hygienic, engineered.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. The low lightness adds weight and formality.

Worth knowing

At high lightness it disappears into white surfaces and thin strokes vanish entirely.

Reads as
  • FormalityHigh
  • EnergyMedium
  • Weight56/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#865968
Analogous left#598660
Analogous right#597E86
Split-complement 1#86597E
Split-complement 2#866059
Triadic 1#775986
Triadic 2#867759
Tetradic#605986
On the wheel
Base+30°−30°+120°+240°+180°160°

#598677 sits at 160°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red34.9%
Green52.5%
Blue46.7%
R · 0–255
89
0x59
G · 0–255
134
0x86
B · 0–255
119
0x77

CMYK percentages

Cyan33.6%
Magenta0.0%
Yellow11.2%
Key (black)47.5%

Total ink coverage is 92%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#598677 text on a black background

contrast 5.10:1

Card sample

#598677 text on a white background

contrast 4.12:1

Card sample

#598677 on grey

3.76:1

#598677 on its own surface

3.89:1

#598677 on its dark surface

3.98:1

CSS3 live lab

Text font color

The quick brown fox

color: #598677;
Background color
Panel with #598677 background
background-color: #598677;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #598677;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(89, 134, 119, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(89, 134, 119, 0.45);
Border & gradient
Gradient panel
border: 3px solid #598677;
background: linear-gradient(135deg, #598677, #597786);
Gradient text

Gradient headline

background: linear-gradient(90deg, #598677, #596C86);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #598677;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #598677;
caret-color: #598677;
Left rule
Pull quote or callout
border-left: 4px solid #598677;
Ring + tint
Selected chip
background: #F0F5F3;
box-shadow: inset 0 0 0 2px #598677;
Conic badge
68%
background: conic-gradient(#598677 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #598677 over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(89, 134, 119, 0.5)
rgb(89 134 119 / 50%)
#59867780
hsl(160 20% 44% / 50%)
color-mix(in srgb, #598677 50%, transparent)
Alpha8-digit hexFlat on white
10%#5986771a#EEF3F1
20%#59867733#DEE7E4
40%#59867766#BDCFC9
60%#59867799#9BB6AD
80%#598677cc#7A9E92

Gradients from #598677

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #77A596, #598677 45%, #334D44);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #598677, #4D6374);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #598677, #865968);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #8AB1A4 0%, #598677 45%, #334D44 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F6F9F8, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #71A175 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #658C98 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #334D44 0%, transparent 65%), #598677;

Monochromatic scale

Palettes built from #598677

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#598677 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyTravelHealthcareMedia
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Converts to four-color process without much drama. Proof it anyway.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 5.10:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#598677, answered

What color is #598677?

#598677 is a dark soft cyan, closest to Dark Cyan (ΔE2000 10). It sits at 160° on the hue wheel with 20% saturation and 44% lightness, which reads as cool.

What is the RGB value of #598677?

rgb(89, 134, 119) — 89 red, 134 green and 119 blue out of 255, or 34.9% / 52.5% / 46.7% by channel.

What is #598677 in HSL and HSV?

hsl(160, 20%, 44%) and hsv(160, 34%, 53%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #598677 a light or a dark color?

It is a mid-tone. Relative luminance is 0.2051 and perceived brightness is 47%, so black text on it reaches 5.10:1.

Should I use black or white text on #598677?

Black. It scores 5.10:1 against #598677, versus 4.12:1 for white — AA at any size.

Is #598677 accessible on a white background?

#598677 on white scores 4.12:1, which only clears AA for large text — 18.66px bold or 24px regular and up. Darken it to #537D6F to reach 4.5:1, or #3E5E54 for 7:1.

What is the complementary color of #598677?

#865968 sits directly opposite on the wheel. Softer options are the split-complements #86597E and #866059, which give the same contrast with far less vibration.

What colors go well with #598677?

For interface work: #F6F9F8 as the surface, #CEDED9 for borders, #5C8A7A for secondary text, #8A5474 as an accent and #334D44 for hover and pressed states. For a palette, the analogous pair #598660 and #597E86 stays calm, while #865968 is the loudest partner.

What is #598677 in CMYK for printing?

cmyk(34%, 0%, 11%, 48%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #598677 warm or cool?

Cool — it scores 67 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #598666; nudged cooler, #578788.

Which Tailwind color is closest to #598677?

The teal family — its 500 step is #14b8a6, ΔE2000 17 away. That is a visible difference, so define #598677 as a custom token rather than reaching for the built-in.

How do I use #598677 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#598677] or text-[#598677], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #598677 with 50% opacity?

rgba(89, 134, 119, 0.5), or #59867780 in eight-digit hex. Over white that composites to #ACC3BB; over black, #2D433C.

Is #598677 a web-safe color?

No. The nearest web-safe colour is #669966, ΔE2000 12.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #598677 mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this moderate chroma the association is present but not shouted.

What gradient works with #598677?

The safest is same-hue elevation: linear-gradient(135deg, #77A596, #598677 45%, #334D44). For more colour, a short hue run to #4D6374 keeps it rich without turning muddy.

Work with #598677 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #598677 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.