#287EA6#287EA6

#287EA6 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.1% C 0.101 H 233.1°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#287EA6
RGB	rgb(40, 126, 166)
HSL	hsl(199, 61%, 40%)
HSV	hsv(199, 76%, 65%)
CMYK	cmyk(75.9%, 24.1%, 0%, 34.9%)
CIE-LAB	lab(49.65, -11.47, -28.57)
CIE-LCH	lch(49.65, 30.78, 248.13°)
OKLab	oklab(56.08% -0.0603 -0.0804)
OKLCH	oklch(56.08% 0.101 233.1)
XYZ	xyz(15.2161, 18.1242, 38.7654)
Luminance	0.1813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287EA6 #A65028

analogous

#28A68F #287EA6 #283FA6

triadic

#287EA6 #A6287E #7EA628

tetradic

#287EA6 #8F28A6 #A65028 #3FA628

square

#287EA6 #8F28A6 #A65028 #3FA628

split-complementary

#287EA6 #A6283F #A68F28

monochromatic

#103343 #1C5975 #287EA6 #3BA1D0 #6DB8DC

Accessibility & contrast

On white

4.54

#287EA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#287EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287EA6

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287EA6	#FFFFFF	#000000	##000000
##287EA6	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7DA8

Deuteranopia (green-blind)

#5971A5

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #287ea6;
/* rgb */ color: rgb(40, 126, 166);
/* oklch */ color: oklch(56.1% 0.101 233.1);

Tailwind

colors: {
  custom: {
    50: '#75a3c0',
    500: '#287ea6',
    950: '#000000',
  },
}

SCSS

$custom: #287ea6;
$custom-light: #75a3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#287ea6",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 166
  },
  "hsl": {
    "h": 199.048,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.56083,
    "c": 0.10051,
    "h": 233.1
  },
  "luminance": 0.18126
}

Semantic roles & 50–950 ramp

primary

#287EA6

secondary

#C28467

accent

#7744E4

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #287EA6

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

Preview Lab → · Contrast checker → · Palette generator →