#287C9D#287C9D

#287C9D is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.1% C 0.093 H 228.6°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#287C9D
RGB	rgb(40, 124, 157)
HSL	hsl(197, 59%, 39%)
HSV	hsv(197, 75%, 62%)
CMYK	cmyk(74.5%, 21%, 0%, 38.4%)
CIE-LAB	lab(48.63, -13.50, -24.89)
CIE-LCH	lch(48.63, 28.31, 241.52°)
OKLab	oklab(55.15% -0.0616 -0.0698)
OKLCH	oklch(55.15% 0.093 228.6)
XYZ	xyz(14.1661, 17.2991, 34.4842)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287C9D #9D4928

analogous

#289D83 #287C9D #28419D

triadic

#287C9D #9D287C #7C9D28

tetradic

#287C9D #83289D #9D4928 #419D28

square

#287C9D #83289D #9D4928 #419D28

split-complementary

#287C9D #9D2841 #9D8328

monochromatic

#0F2F3B #1C556C #287C9D #36A2CC #67B8D8

Accessibility & contrast

On white

4.71

#287C9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#287C9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287C9D

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287C9D	#FFFFFF	#000000	##FFFFFF
##287C9D	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7A9F

Deuteranopia (green-blind)

#5B6F9D

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #287c9d;
/* rgb */ color: rgb(40, 124, 157);
/* oklch */ color: oklch(55.1% 0.093 228.6);

Tailwind

colors: {
  custom: {
    50: '#73a2ba',
    500: '#287c9d',
    950: '#000000',
  },
}

SCSS

$custom: #287c9d;
$custom-light: #73a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#287c9d",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 157
  },
  "hsl": {
    "h": 196.923,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.55146,
    "c": 0.09313,
    "h": 228.6
  },
  "luminance": 0.17301
}

Semantic roles & 50–950 ramp

primary

#287C9D

secondary

#BE7C62

accent

#7245E3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #287C9D

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

Preview Lab → · Contrast checker → · Palette generator →