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cyan · cool

#5b706f

a dark, muted cyan · cool · closest name: Dim Gray

Token name suggestion: Slate Lagoon

RGB
91, 112, 111
HSL
177°, 10%, 40%
CMYK
19, 0, 1, 56
Luminance
0.1496

#5b706f is a dark muted cyan, 177° on the wheel and 61/100 on the cool side. Put white text on it (5.26:1). As text it scores 5.26:1 on white — safe at any size. Nearest name is Dim Gray, nearest Tailwind family is neutral.

hsl(177 10% 40%)rgb(91 112 111)Base step 700AA inkCool

At a glance

Every number on this page in one read: what #5b706f is made of, how bright it looks, and which way it leans.

Hex
#5b706f
Hue
177°
cyan
Saturation
10%
muted
Lightness
40%
dark
Brightness
44%
HSV value
Perceived
42%
weighted brightness
Luminance
0.1496
WCAG relative
Temperature
Cool
61/100 cool
Color family
Cyan
Tone
Muted
Best ink
White
5.26:1
Closest name
Dim Gray
ΔE2000 9.6
Chroma
8.2
LCH, 0–130ish
OKLCH L
0.528
perceptual lightness
Tailwind
neutral
500 · ΔE 9.9
Web-safe
#666666
nearest of 216
Where it sits
Hue177° of 360°
Saturation10%
Lightness40%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #5b706f.

Temperature
Warm ← → Cool61% 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
Red15%
Green77%
Blue8%

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

Every format

HEX#5b706f
HEX (8-digit)#5b706fff
RGBrgb(91, 112, 111)
RGBArgba(91, 112, 111, 1)
HSLhsl(177, 10%, 40%)
HSV / HSBhsv(177, 19%, 44%)
HWBhwb(177 36% 56%)
CMYKcmyk(19%, 0%, 1%, 56%)
LABlab(45.6 -8.0 -2.0)
LCHlch(45.6 8.2 194.3)
OKLCHoklch(0.528 0.025 192.9)
XYZ (D65)xyz(12.98, 14.96, 17.24)
Decimal5992559
Display P3color(display-p3 0.357 0.439 0.435)
Web-safe#666666

Copy-ready code

every platformclick to select
/* CSS */
color: #5b706f;
background-color: #5b706f;
/* CSS custom property */
--brand: #5b706f;
/* Tailwind (arbitrary) */
class="text-[#5b706f] bg-[#5b706f]"
/* SCSS */
$brand: #5b706f;
/* SwiftUI */
Color(red: 0.357, green: 0.439, blue: 0.435)
/* UIKit */
UIColor(red: 0.357, green: 0.439, blue: 0.435, alpha: 1)
/* Android XML */
<color name="brand">#5B706F</color>
/* Android Compose */
Color(0xFF5B706F)
/* Flutter */
Color(0xFF5B706F)
/* Python / OpenCV (BGR) */
(111, 112, 91)
/* Python / PIL (RGB) */
(91, 112, 111)
/* Java AWT */
new Color(91, 112, 111)
/* .NET */
Color.FromArgb(255, 91, 112, 111)
/* OpenGL / Unity (0–1) */
(0.3569f, 0.4392f, 0.4353f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{91,112,111}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #5b706f 85%, white);
border-color: color-mix(in oklab, #5b706f 40%, transparent);
/* theme-aware in one line */
color: light-dark(#394646, #DDE4E3);
/* relative colour syntax */
--hover: hsl(from #5b706f 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: #F7F8F8;
  --brand-100: #EEF1F1;
  --brand-200: #DBE1E1;
  --brand-300: #C1CDCC;
  --brand-400: #A2B4B3;
  --brand-500: #839A99;
  --brand-600: #6E8786;
  --brand-700: #5b706f;
  --brand-800: #495A59;
  --brand-900: #374342;
  --brand-950: #232A2A;
  --brand: #5b706f;
  --brand-ink: #ffffff;
  --brand-surface: #F7F8F8;
  --brand-border: #D2DADA;
  --brand-hover: #4B5C5B;
  --brand-pressed: #3B4948;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #191F1F;
    --brand-ink: #DDE4E3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F7F8F8',
        100: '#EEF1F1',
        200: '#DBE1E1',
        300: '#C1CDCC',
        400: '#A2B4B3',
        500: '#839A99',
        600: '#6E8786',
        700: '#5b706f',
        800: '#495A59',
        900: '#374342',
        950: '#232A2A',
        DEFAULT: '#5b706f',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F7F8F8,
  '100': #EEF1F1,
  '200': #DBE1E1,
  '300': #C1CDCC,
  '400': #A2B4B3,
  '500': #839A99,
  '600': #6E8786,
  '700': #5b706f,
  '800': #495A59,
  '900': #374342,
  '950': #232A2A,
);
$brand-base: #5b706f;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F7F8F8", "$type": "color" },
      "100": { "$value": "#EEF1F1", "$type": "color" },
      "200": { "$value": "#DBE1E1", "$type": "color" },
      "300": { "$value": "#C1CDCC", "$type": "color" },
      "400": { "$value": "#A2B4B3", "$type": "color" },
      "500": { "$value": "#839A99", "$type": "color" },
      "600": { "$value": "#6E8786", "$type": "color" },
      "700": { "$value": "#5b706f", "$type": "color" },
      "800": { "$value": "#495A59", "$type": "color" },
      "900": { "$value": "#374342", "$type": "color" },
      "950": { "$value": "#232A2A", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$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#ffffff on #5b706f · 5.26:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 5.26:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.99:1
AA fail · AA large pass · AAA fail
Reading the other direction: #5b706f as text scores 5.26:1 on white and 3.99:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F1F4F3 at 4.75:1.

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
#5b706f · 5.26:1
AA on whitealready passes
#5b706f
The quick fox
#4B5C5B · 7.04:1
AAA on white−7% L
#4B5C5B
The quick fox
#647B7A · 4.66:1
AA on black+4% L
#647B7A
The quick fox
#839A99 · 7.05:1
AAA on black+16% L
#839A99

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #5B706F 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
#5b706f on white: 5.26:1
AA ✓ pass · AA-large · AAA
Aa
#5b706f on black: 3.99:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #5b706f as text on that neutral, and that neutral as text on #5b706f.

NeutralRatioBoth directions
White5.26:1AaAa
Slate 505.03:1AaAa
Slate 1004.80:1AaAa
Slate 2004.27:1AaAa
Slate 3003.54:1AaAa
Slate 4002.05:1AaAa
Slate 5001.11:1AaAa
Slate 6001.44:1AaAa
Slate 7001.97:1AaAa
Slate 8002.78:1AaAa
Slate 9003.39:1AaAa
Black3.99:1AaAa
Colour vision deficiency
true color
protanopia · #6D6E6F
deuteranopia · #696B6F
tritanopia · #557170

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. #5b706f 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.

#F7F8F8
#EEF1F1
#DBE1E1
#C1CDCC
#A2B4B3
#839A99
#6E8786
#5b706f
#495A59
#374342
#232A2A
Base = 700Lightest = 50 · #F7F8F8Darkest = 950 · #232A2AText step on white = 700
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 0.006 192.9);
  --brand-100: oklch(0.94 0.010 192.9);
  --brand-200: oklch(0.88 0.015 192.9);
  --brand-300: oklch(0.80 0.019 192.9);
  --brand-400: oklch(0.72 0.023 192.9);
  --brand-500: oklch(0.64 0.025 192.9);
  --brand-600: oklch(0.56 0.025 192.9);
  --brand-700: oklch(0.48 0.023 192.9);
  --brand-800: oklch(0.40 0.021 192.9);
  --brand-900: oklch(0.32 0.017 192.9);
  --brand-950: oklch(0.24 0.014 192.9);
}

Colors that work with #5b706f

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

Text on it#ffffff
White wins here
Surface#F7F8F8
Tinted page background
Border#D2DADA
Hairlines and dividers
Muted text#677F7D
Captions on the surface
Accent#745760
Second voice, not a rival
Dark variant#394646
Hover, pressed, headers
Light variant#F1F4F3
Selected rows, tints
Dark surface#191F1F
Dark-mode background
Hover#4B5C5B
One step down in lightness
Pressed#3B4948
Two steps down
Disabled#94A8A7
Chroma pulled out
Focus ring#598684
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 #5b706f

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

Works well for
  • Body text and links on white
  • Borders, dividers and quiet backgrounds
  • Long-form reading surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • 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
Any size
Safe as a fill behind white type
Yes
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.

With almost no chroma left, the family association is barely present; treat it as a neutral that happens to lean this way. 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
  • EnergyLow
  • Weight60/100
  • TemperatureCool
  • ApproachabilityBalanced

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#705B5C
Analogous left#5B7064
Analogous right#5B6770
Split-complement 1#705B67
Split-complement 2#70645B
Triadic 1#6F5B70
Triadic 2#706F5B
Tetradic#645B70
On the wheel
Base+30°−30°+120°+240°+180°177°

#5b706f sits at 177°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red35.7%
Green43.9%
Blue43.5%
R · 0–255
91
0x5b
G · 0–255
112
0x70
B · 0–255
111
0x6f

CMYK percentages

Cyan18.7%
Magenta0.0%
Yellow0.9%
Key (black)56.1%

Total ink coverage is 76%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#5b706f text on a black background

contrast 3.99:1

Card sample

#5b706f text on a white background

contrast 5.26:1

Card sample

#5b706f on grey

4.80:1

#5b706f on its own surface

4.94:1

#5b706f on its dark surface

3.18:1

CSS3 live lab

Text font color

The quick brown fox

color: #5b706f;
Background color
Panel with #5b706f background
background-color: #5b706f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #5b706f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(91, 112, 111, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(91, 112, 111, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5b706f;
background: linear-gradient(135deg, #5b706f, #5B6370);
Gradient text

Gradient headline

background: linear-gradient(90deg, #5b706f, #5B5E70);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #5b706f;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #5b706f;
caret-color: #5b706f;
Left rule
Pull quote or callout
border-left: 4px solid #5b706f;
Ring + tint
Selected chip
background: #F1F4F3;
box-shadow: inset 0 0 0 2px #5b706f;
Conic badge
68%
background: conic-gradient(#5b706f 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #5b706f 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(91, 112, 111, 0.5)
rgb(91 112 111 / 50%)
#5b706f80
hsl(177 10% 40% / 50%)
color-mix(in srgb, #5b706f 50%, transparent)
Alpha8-digit hexFlat on white
10%#5b706f1a#EFF1F1
20%#5b706f33#DEE2E2
40%#5b706f66#BDC6C5
60%#5b706f99#9DA9A9
80%#5b706fcc#7C8D8C

Gradients from #5b706f

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, #779190, #5b706f 45%, #394646);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #5b706f, #4D535F);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #5b706f, #705B5C);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #889E9D 0%, #5b706f 45%, #394646 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F7F8F8, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #728C7C 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #697481 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #394646 0%, transparent 65%), #5b706f;

Monochromatic scale

Palettes built from #5b706f

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.

#5b706f 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
BackgroundsBordersBody textDividers
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

Too dim on dark surfaces at 3.99:1 — lift it to #647B7A for body text, or reserve it for fills.

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.

#5b706f, answered

What color is #5b706f?

#5b706f is a dark muted cyan, closest to Dim Gray (ΔE2000 9.6). It sits at 177° on the hue wheel with 10% saturation and 40% lightness, which reads as cool.

What is the RGB value of #5b706f?

rgb(91, 112, 111) — 91 red, 112 green and 111 blue out of 255, or 35.7% / 43.9% / 43.5% by channel.

What is #5b706f in HSL and HSV?

hsl(177, 10%, 40%) and hsv(177, 19%, 44%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #5b706f a light or a dark color?

It is a dark color. Relative luminance is 0.1496 and perceived brightness is 42%, so white text on it reaches 5.26:1.

Should I use black or white text on #5b706f?

White. It scores 5.26:1 against #5b706f, versus 3.99:1 for black — AA at any size.

Is #5b706f accessible on a white background?

#5b706f on white scores 5.26:1, which clears AA at every size but not AAA.

What is the complementary color of #5b706f?

#705B5C sits directly opposite on the wheel. Softer options are the split-complements #705B67 and #70645B, which give the same contrast with far less vibration.

What colors go well with #5b706f?

For interface work: #F7F8F8 as the surface, #D2DADA for borders, #677F7D for secondary text, #745760 as an accent and #394646 for hover and pressed states. For a palette, the analogous pair #5B7064 and #5B6770 stays calm, while #705B5C is the loudest partner.

What is #5b706f in CMYK for printing?

cmyk(19%, 0%, 1%, 56%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #5b706f warm or cool?

Cool — it scores 61 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #5B7067; nudged cooler, #596A72.

Which Tailwind color is closest to #5b706f?

The neutral family — its 500 step is #737373, ΔE2000 9.9 away. That is a visible difference, so define #5b706f as a custom token rather than reaching for the built-in.

How do I use #5b706f in Tailwind CSS?

Inline it as an arbitrary value with bg-[#5b706f] or text-[#5b706f], 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 #5b706f with 50% opacity?

rgba(91, 112, 111, 0.5), or #5b706f80 in eight-digit hex. Over white that composites to #ADB8B7; over black, #2E3838.

Is #5b706f a web-safe color?

No. The nearest web-safe colour is #666666, ΔE2000 9.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #5b706f mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this low chroma the association is faint; it behaves more like a neutral.

What gradient works with #5b706f?

The safest is same-hue elevation: linear-gradient(135deg, #779190, #5b706f 45%, #394646). For more colour, a short hue run to #4D535F keeps it rich without turning muddy.

Work with #5b706f in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #5b706f at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.