#289FBC#289FBC

#289FBC is a light, moderate cyan. Relative luminance 0.289; OKLCH L 65.2% C 0.108 H 218.7°. Best body text is #000000 at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#289FBC
RGB	rgb(40, 159, 188)
HSL	hsl(192, 65%, 45%)
HSV	hsv(192, 79%, 74%)
CMYK	cmyk(78.7%, 15.4%, 0%, 26.3%)
CIE-LAB	lab(60.67, -21.88, -24.10)
CIE-LCH	lch(60.67, 32.55, 227.76°)
OKLab	oklab(65.21% -0.0842 -0.0674)
OKLCH	oklch(65.21% 0.108 218.7)
XYZ	xyz(22.3465, 28.8755, 51.9630)
Luminance	0.2888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289FBC #BC4528

analogous

#28BC8F #289FBC #2855BC

triadic

#289FBC #BC289F #9FBC28

tetradic

#289FBC #8F28BC #BC4528 #55BC28

square

#289FBC #8F28BC #BC4528 #55BC28

split-complementary

#289FBC #BC2855 #BC8F28

monochromatic

#134A57 #1D748A #289FBC #49BCD8 #7BCFE3

Accessibility & contrast

On white

3.10

#289FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.78

#289FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289FBC

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289FBC	#FFFFFF	#000000	##000000
##289FBC	1.00	3.10	6.78	6.78
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.78	21.00	1.00	1.00
##000000	6.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D9ABE

Deuteranopia (green-blind)

#798CBC

Tritanopia (blue-blind)

#00A9A8

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #289fbc;
/* rgb */ color: rgb(40, 159, 188);
/* oklch */ color: oklch(65.2% 0.108 218.7);

Tailwind

colors: {
  custom: {
    50: '#7bbbd0',
    500: '#289fbc',
    950: '#000000',
  },
}

SCSS

$custom: #289fbc;
$custom-light: #7bbbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#289fbc",
  "rgb": {
    "r": 40,
    "g": 159,
    "b": 188
  },
  "hsl": {
    "h": 191.757,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.65213,
    "c": 0.10787,
    "h": 218.7
  },
  "luminance": 0.28878
}

Semantic roles & 50–950 ramp

primary

#289FBC

secondary

#CB8675

accent

#6140E8

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1214

muted

#7C8182

Preview Lab

Preview with #289FBC

Body copy rendered with the generated semantic roles for this colour.

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