#287D9D#287D9D

#287D9D is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.4% C 0.093 H 227.5°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#287D9D
RGB	rgb(40, 125, 157)
HSL	hsl(196, 59%, 39%)
HSV	hsv(196, 75%, 62%)
CMYK	cmyk(74.5%, 20.4%, 0%, 38.4%)
CIE-LAB	lab(48.95, -14.06, -24.41)
CIE-LCH	lch(48.95, 28.17, 240.05°)
OKLab	oklab(55.4% -0.0626 -0.0684)
OKLCH	oklch(55.4% 0.093 227.5)
XYZ	xyz(14.2920, 17.5510, 34.5262)
Luminance	0.1755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287D9D #9D4828

analogous

#289D82 #287D9D #28429D

triadic

#287D9D #9D287D #7D9D28

tetradic

#287D9D #82289D #9D4828 #429D28

square

#287D9D #82289D #9D4828 #429D28

split-complementary

#287D9D #9D2842 #9D8228

monochromatic

#0F2F3B #1C566C #287D9D #36A3CC #67B9D8

Accessibility & contrast

On white

4.66

#287D9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#287D9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287D9D

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287D9D	#FFFFFF	#000000	##FFFFFF
##287D9D	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7B9F

Deuteranopia (green-blind)

#5C6F9D

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287d9d;
/* rgb */ color: rgb(40, 125, 157);
/* oklch */ color: oklch(55.4% 0.093 227.5);

Tailwind

colors: {
  custom: {
    50: '#73a2ba',
    500: '#287d9d',
    950: '#000000',
  },
}

SCSS

$custom: #287d9d;
$custom-light: #73a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#287d9d",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 157
  },
  "hsl": {
    "h": 196.41,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.55396,
    "c": 0.09278,
    "h": 227.5
  },
  "luminance": 0.17553
}

Semantic roles & 50–950 ramp

primary

#287D9D

secondary

#BE7C62

accent

#7045E3

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #287D9D

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

Preview Lab → · Contrast checker → · Palette generator →