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#89bacf

a light, soft cyan · cool · closest name: Sky Blue

RGB
137, 186, 207
HSL
198°, 42%, 68%
CMYK
34, 10, 0, 19
Luminance
0.4494

At a glance

Every number on this page in one read: what #89bacf is made of, how bright it looks, and which way it leans.

Hex
#89bacf
Hue
198°
cyan
Saturation
42%
soft
Lightness
68%
light
Brightness
81%
HSV value
Perceived
69%
weighted brightness
Luminance
0.4494
WCAG relative
Temperature
Cool
95/100 cool
Color family
Cyan
Tone
Soft
Best ink
Black
9.99:1
Closest name
Sky Blue
ΔE2000 5.7
Where it sits
Hue198° of 360°
Saturation42%
Lightness68%
Temperature
Warm ← → Cool95% cool

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

Every format

HEX#89bacf
RGBrgb(137, 186, 207)
HSLhsl(198, 42%, 68%)
CMYKcmyk(34%, 10%, 0%, 19%)
LABlab(72.8 -11.0 -15.8)
LCHlch(72.8 19.2 235.0)
OKLCHoklch(0.762 0.060 226.3)
Decimal9026255
Display P3color(display-p3 0.537 0.729 0.812)

Copy-ready code

/* CSS */
color: #89bacf;
background-color: #89bacf;
/* Tailwind (arbitrary) */
class="text-[#89bacf] bg-[#89bacf]"
/* SCSS */
$brand: #89bacf;
/* SwiftUI */
Color(red: 0.537, green: 0.729, blue: 0.812)
/* Android */
Color.parseColor("#89bacf")
/* Flutter */
Color(0xFF89BACF)
/* Python / OpenCV (BGR) */
(207, 186, 137)

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 #89bacf · 9.99:1
Use #000000AAA at every size.
Aa
White text · 2.10:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.99:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #89bacf as text scores 2.10:1 on white and 9.99:1 on black.

Accessibility — WCAG contrast

Aa
#89bacf on white: 2.10:1
AA ✗ fail · AA-large · AAA
Aa
#89bacf on black: 9.99:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #AFB8D0
deuteranopia · #A4AFCF
tritanopia · #71C0C1

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #89bacf is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F8FA
#EBF2F5
#D2E3EA
#AFD0DF
#89bacf
#5FA2BE
#478FAE
#3B7791
#2F5F74
#254755
#172C35
Base = 400Lightest = 50 · #F5F8FADarkest = 950 · #172C35
:root {
  --brand-50: #F5F8FA;
  --brand-100: #EBF2F5;
  --brand-200: #D2E3EA;
  --brand-300: #AFD0DF;
  --brand-400: #89bacf;
  --brand-500: #5FA2BE;
  --brand-600: #478FAE;
  --brand-700: #3B7791;
  --brand-800: #2F5F74;
  --brand-900: #254755;
  --brand-950: #172C35;
  --brand: #89bacf;
  --brand-ink: #000000;
}

Colors that work with #89bacf

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#F4F9FA
Tinted page background
Border#C5DDE7
Hairlines and dividers
Muted text#4B839B
Captions on the surface
Accent#953C37
Second voice, not a rival
Dark variant#254B5B
Hover, pressed, headers
Light variant#EDF4F8
Selected rows, tints
Dark surface#141F24
Dark-mode background
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

How to use #89bacf

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

Works well for
  • Text and icons on dark surfaces
  • Charts, tags and secondary surfaces
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • White text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate

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#CF9E89
Analogous left#89CFC1
Analogous right#8997CF
Split-complement 1#CF8997
Split-complement 2#CFC189
Triadic 1#CF89BA
Triadic 2#BACF89
Tetradic#C189CF

RGB percentages

Red53.7%
Green72.9%
Blue81.2%

CMYK percentages

Cyan33.8%
Magenta10.1%
Yellow0.0%
Key (black)18.8%

Color previews

#89bacf text on a black background

contrast 9.99:1

Card sample

#89bacf text on a white background

contrast 2.10:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #89bacf;
Background color
Panel with #89bacf background
background-color: #89bacf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #89bacf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(137, 186, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(137, 186, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #89bacf;
background: linear-gradient(135deg, #89bacf, #898BCF);

Monochromatic scale

Palettes built from #89bacf

Shades — darker

Tints — lighter

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.

#89bacf 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
SurfacesBadgesHighlightsEmpty states
Print note

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

#89bacf, answered

What color is #89bacf?

#89bacf is a light soft cyan, closest to Sky Blue (ΔE2000 5.7). It sits at 198° on the hue wheel with 42% saturation and 68% lightness, which reads as cool.

What is the RGB value of #89bacf?

rgb(137, 186, 207) — 137 red, 186 green and 207 blue out of 255, or 53.7% / 72.9% / 81.2% by channel.

Is #89bacf a light or a dark color?

It is a mid-tone. Relative luminance is 0.4494 and perceived brightness is 69%, so black text on it reaches 9.99:1.

Should I use black or white text on #89bacf?

Black. It scores 9.99:1 against #89bacf, versus 2.10:1 for white — AAA at any size.

What is the complementary color of #89bacf?

#CF9E89 sits directly opposite on the wheel. Softer options are the split-complements #CF8997 and #CFC189, which give the same contrast with far less vibration.

What colors go well with #89bacf?

For interface work: #F4F9FA as the surface, #C5DDE7 for borders, #4B839B for secondary text, #953C37 as an accent and #254B5B for hover and pressed states. For a palette, the analogous pair #89CFC1 and #8997CF stays calm, while #CF9E89 is the loudest partner.

What is #89bacf in CMYK for printing?

cmyk(34%, 10%, 0%, 19%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #89bacf warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #89CFCA; nudged cooler, #87AED1.

Work with #89bacf in the Color Lab