#287FA3#287FA3

#287FA3 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.2% C 0.097 H 230.1°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#287FA3
RGB	rgb(40, 127, 163)
HSL	hsl(198, 61%, 40%)
HSV	hsv(198, 75%, 64%)
CMYK	cmyk(75.5%, 22.1%, 0%, 36.1%)
CIE-LAB	lab(49.82, -13.09, -26.55)
CIE-LCH	lch(49.82, 29.60, 243.75°)
OKLab	oklab(56.18% -0.0624 -0.0746)
OKLCH	oklch(56.18% 0.097 230.1)
XYZ	xyz(15.0726, 18.2724, 37.3758)
Luminance	0.1827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287FA3 #A34C28

analogous

#28A38A #287FA3 #2842A3

triadic

#287FA3 #A3287F #7FA328

tetradic

#287FA3 #8A28A3 #A34C28 #42A328

square

#287FA3 #8A28A3 #A34C28 #42A328

split-complementary

#287FA3 #A32842 #A38A28

monochromatic

#103241 #1C5972 #287FA3 #3AA3CF #6BBADB

Accessibility & contrast

On white

4.51

#287FA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#287FA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287FA3

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287FA3	#FFFFFF	#000000	##000000
##287FA3	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7DA5

Deuteranopia (green-blind)

#5C71A2

Tritanopia (blue-blind)

#00898B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #287fa3;
/* rgb */ color: rgb(40, 127, 163);
/* oklch */ color: oklch(56.2% 0.097 230.1);

Tailwind

colors: {
  custom: {
    50: '#74a4be',
    500: '#287fa3',
    950: '#000000',
  },
}

SCSS

$custom: #287fa3;
$custom-light: #74a4be;
$custom-dark: #000000;

JSON

{
  "hex": "#287fa3",
  "rgb": {
    "r": 40,
    "g": 127,
    "b": 163
  },
  "hsl": {
    "h": 197.561,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.56182,
    "c": 0.09724,
    "h": 230.1
  },
  "luminance": 0.18274
}

Semantic roles & 50–950 ramp

primary

#287FA3

secondary

#C18066

accent

#7344E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #287FA3

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

Preview Lab → · Contrast checker → · Palette generator →