#287CA3#287CA3

#287CA3 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.4% C 0.099 H 233.0°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#287CA3
RGB	rgb(40, 124, 163)
HSL	hsl(199, 61%, 40%)
HSV	hsv(199, 75%, 64%)
CMYK	cmyk(75.5%, 23.9%, 0%, 36.1%)
CIE-LAB	lab(48.90, -11.39, -27.99)
CIE-LCH	lch(48.90, 30.22, 247.86°)
OKLab	oklab(55.44% -0.0594 -0.0788)
OKLCH	oklch(55.44% 0.099 233)
XYZ	xyz(14.6909, 17.5090, 37.2485)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287CA3 #A34F28

analogous

#28A38C #287CA3 #283FA3

triadic

#287CA3 #A3287C #7CA328

tetradic

#287CA3 #8C28A3 #A34F28 #3FA328

square

#287CA3 #8C28A3 #A34F28 #3FA328

split-complementary

#287CA3 #A3283F #A38C28

monochromatic

#103141 #1C5772 #287CA3 #3A9FCF #6BB7DB

Accessibility & contrast

On white

4.66

#287CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#287CA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287CA3

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287CA3	#FFFFFF	#000000	##FFFFFF
##287CA3	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)

#697BA5

Deuteranopia (green-blind)

#586FA2

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287ca3;
/* rgb */ color: rgb(40, 124, 163);
/* oklch */ color: oklch(55.4% 0.099 233.0);

Tailwind

colors: {
  custom: {
    50: '#74a1be',
    500: '#287ca3',
    950: '#000000',
  },
}

SCSS

$custom: #287ca3;
$custom-light: #74a1be;
$custom-dark: #000000;

JSON

{
  "hex": "#287ca3",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 163
  },
  "hsl": {
    "h": 199.024,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.5544,
    "c": 0.09864,
    "h": 233
  },
  "luminance": 0.17511
}

Semantic roles & 50–950 ramp

primary

#287CA3

secondary

#C18366

accent

#7744E4

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #287CA3

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

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