#287CA1#287CA1

#287CA1 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.3% C 0.097 H 231.6°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#287CA1
RGB	rgb(40, 124, 161)
HSL	hsl(198, 60%, 39%)
HSV	hsv(198, 75%, 63%)
CMYK	cmyk(75.2%, 23%, 0%, 36.9%)
CIE-LAB	lab(48.81, -12.09, -26.96)
CIE-LCH	lch(48.81, 29.55, 245.84°)
OKLab	oklab(55.34% -0.0601 -0.0758)
OKLCH	oklch(55.34% 0.097 231.6)
XYZ	xyz(14.5132, 17.4379, 36.3123)
Luminance	0.1744 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287CA1 #A14D28

analogous

#28A18A #287CA1 #2840A1

triadic

#287CA1 #A1287C #7CA128

tetradic

#287CA1 #8A28A1 #A14D28 #40A128

square

#287CA1 #8A28A1 #A14D28 #40A128

split-complementary

#287CA1 #A12840 #A18A28

monochromatic

#10303F #1C5670 #287CA1 #39A0CE #6AB8DA

Accessibility & contrast

On white

4.68

#287CA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#287CA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287CA1

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287CA1	#FFFFFF	#000000	##FFFFFF
##287CA1	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697AA3

Deuteranopia (green-blind)

#596FA0

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287ca1;
/* rgb */ color: rgb(40, 124, 161);
/* oklch */ color: oklch(55.3% 0.097 231.6);

Tailwind

colors: {
  custom: {
    50: '#74a1bd',
    500: '#287ca1',
    950: '#000000',
  },
}

SCSS

$custom: #287ca1;
$custom-light: #74a1bd;
$custom-dark: #000000;

JSON

{
  "hex": "#287ca1",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 161
  },
  "hsl": {
    "h": 198.347,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.55341,
    "c": 0.09674,
    "h": 231.6
  },
  "luminance": 0.1744
}

Semantic roles & 50–950 ramp

primary

#287CA1

secondary

#C08165

accent

#7544E3

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #287CA1

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

Preview Lab → · Contrast checker → · Palette generator →