#4287AC#4287AC

#4287AC is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.4% C 0.090 H 234.5°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#4287AC
RGB	rgb(66, 135, 172)
HSL	hsl(201, 45%, 47%)
HSV	hsv(201, 62%, 67%)
CMYK	cmyk(61.6%, 21.5%, 0%, 32.5%)
CIE-LAB	lab(53.45, -10.36, -26.07)
CIE-LCH	lch(53.45, 28.05, 248.33°)
OKLab	oklab(59.42% -0.052 -0.0729)
OKLCH	oklch(59.42% 0.09 234.5)
XYZ	xyz(18.3543, 21.4630, 42.1972)
Luminance	0.2147 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4287AC #AC6742

analogous

#42AC9C #4287AC #4252AC

triadic

#4287AC #AC4287 #87AC42

tetradic

#4287AC #9C42AC #AC6742 #52AC42

square

#4287AC #9C42AC #AC6742 #52AC42

split-complementary

#4287AC #AC4252 #AC9C42

monochromatic

#204254 #316480 #4287AC #67A4C5 #93BED6

Accessibility & contrast

On white

3.97

#4287AC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#4287AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4287AC

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4287AC	#FFFFFF	#000000	##000000
##4287AC	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7586AE

Deuteranopia (green-blind)

#677BAB

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4287ac;
/* rgb */ color: rgb(66, 135, 172);
/* oklch */ color: oklch(59.4% 0.090 234.5);

Tailwind

colors: {
  custom: {
    50: '#80aac5',
    500: '#4287ac',
    950: '#000000',
  },
}

SCSS

$custom: #4287ac;
$custom-light: #80aac5;
$custom-dark: #000000;

JSON

{
  "hex": "#4287ac",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 172
  },
  "hsl": {
    "h": 200.943,
    "s": 44.538,
    "l": 46.667
  },
  "oklch": {
    "l": 0.59424,
    "c": 0.0896,
    "h": 234.5
  },
  "luminance": 0.21465
}

Semantic roles & 50–950 ramp

primary

#4287AC

secondary

#C19C89

accent

#8054D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #4287AC

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

Preview Lab → · Contrast checker → · Palette generator →