#287C9C#287C9C

#287C9C is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.1% C 0.092 H 227.8°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#287C9C
RGB	rgb(40, 124, 156)
HSL	hsl(197, 59%, 38%)
HSV	hsv(197, 74%, 61%)
CMYK	cmyk(74.4%, 20.5%, 0%, 38.8%)
CIE-LAB	lab(48.59, -13.85, -24.37)
CIE-LCH	lch(48.59, 28.03, 240.39°)
OKLab	oklab(55.1% -0.062 -0.0683)
OKLCH	oklch(55.1% 0.092 227.8)
XYZ	xyz(14.0810, 17.2651, 34.0364)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287C9C #9C4828

analogous

#289C82 #287C9C #28429C

triadic

#287C9C #9C287C #7C9C28

tetradic

#287C9C #82289C #9C4828 #429C28

square

#287C9C #82289C #9C4828 #429C28

split-complementary

#287C9C #9C2842 #9C8228

monochromatic

#0F2F3B #1C556B #287C9C #36A2CB #67B9D8

Accessibility & contrast

On white

4.72

#287C9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#287C9C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287C9C

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287C9C	#FFFFFF	#000000	##FFFFFF
##287C9C	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7A9E

Deuteranopia (green-blind)

#5B6E9C

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #287c9c;
/* rgb */ color: rgb(40, 124, 156);
/* oklch */ color: oklch(55.1% 0.092 227.8);

Tailwind

colors: {
  custom: {
    50: '#73a2b9',
    500: '#287c9c',
    950: '#000000',
  },
}

SCSS

$custom: #287c9c;
$custom-light: #73a2b9;
$custom-dark: #000000;

JSON

{
  "hex": "#287c9c",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 156
  },
  "hsl": {
    "h": 196.552,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55098,
    "c": 0.09227,
    "h": 227.8
  },
  "luminance": 0.17267
}

Semantic roles & 50–950 ramp

primary

#287C9C

secondary

#BE7B62

accent

#7145E2

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #287C9C

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

Preview Lab → · Contrast checker → · Palette generator →