#287D9C#287D9C

#287D9C is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.3% C 0.092 H 226.7°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#287D9C
RGB	rgb(40, 125, 156)
HSL	hsl(196, 59%, 38%)
HSV	hsv(196, 74%, 61%)
CMYK	cmyk(74.4%, 19.9%, 0%, 38.8%)
CIE-LAB	lab(48.91, -14.41, -23.89)
CIE-LCH	lch(48.91, 27.90, 238.90°)
OKLab	oklab(55.35% -0.063 -0.067)
OKLCH	oklch(55.35% 0.092 226.7)
XYZ	xyz(14.2070, 17.5170, 34.0784)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287D9C #9C4728

analogous

#289C81 #287D9C #28439C

triadic

#287D9C #9C287D #7D9C28

tetradic

#287D9C #81289C #9C4728 #439C28

square

#287D9C #81289C #9C4728 #439C28

split-complementary

#287D9C #9C2843 #9C8128

monochromatic

#0F2F3B #1C566B #287D9C #36A3CB #67BAD8

Accessibility & contrast

On white

4.66

#287D9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#287D9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287D9C

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287D9C	#FFFFFF	#000000	##FFFFFF
##287D9C	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7B9E

Deuteranopia (green-blind)

#5D6F9C

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287d9c;
/* rgb */ color: rgb(40, 125, 156);
/* oklch */ color: oklch(55.3% 0.092 226.7);

Tailwind

colors: {
  custom: {
    50: '#73a2b9',
    500: '#287d9c',
    950: '#000000',
  },
}

SCSS

$custom: #287d9c;
$custom-light: #73a2b9;
$custom-dark: #000000;

JSON

{
  "hex": "#287d9c",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 156
  },
  "hsl": {
    "h": 196.034,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55348,
    "c": 0.09195,
    "h": 226.7
  },
  "luminance": 0.17519
}

Semantic roles & 50–950 ramp

primary

#287D9C

secondary

#BE7A62

accent

#6F45E2

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #287D9C

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

Preview Lab → · Contrast checker → · Palette generator →