#4287C0#4287C0

#4287C0 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.4% C 0.112 H 246.0°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4287C0
RGB	rgb(66, 135, 192)
HSL	hsl(207, 50%, 51%)
HSV	hsv(207, 66%, 75%)
CMYK	cmyk(65.6%, 29.7%, 0%, 24.7%)
CIE-LAB	lab(54.33, -3.69, -36.15)
CIE-LCH	lch(54.33, 36.33, 264.17°)
OKLab	oklab(60.41% -0.0453 -0.102)
OKLCH	oklch(60.41% 0.112 246)
XYZ	xyz(20.4216, 22.2899, 53.0851)
Luminance	0.2229 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4287C0 #C07B42

analogous

#42C0BA #4287C0 #4248C0

triadic

#4287C0 #C04287 #87C042

tetradic

#4287C0 #BA42C0 #C07B42 #48C042

square

#4287C0 #BA42C0 #C07B42 #48C042

split-complementary

#4287C0 #C04248 #C0BA42

monochromatic

#224766 #316794 #4287C0 #70A4CF #9EC1DF

Accessibility & contrast

On white

3.85

#4287C0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#4287C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4287C0

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4287C0	#FFFFFF	#000000	##000000
##4287C0	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E89C3

Deuteranopia (green-blind)

#5D7CBF

Tritanopia (blue-blind)

#00959B

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4287c0;
/* rgb */ color: rgb(66, 135, 192);
/* oklch */ color: oklch(60.4% 0.112 246.0);

Tailwind

colors: {
  custom: {
    50: '#83a9d3',
    500: '#4287c0',
    950: '#000000',
  },
}

SCSS

$custom: #4287c0;
$custom-light: #83a9d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4287c0",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 192
  },
  "hsl": {
    "h": 207.143,
    "s": 50,
    "l": 50.588
  },
  "oklch": {
    "l": 0.60411,
    "c": 0.11166,
    "h": 246
  },
  "luminance": 0.22292
}

Semantic roles & 50–950 ramp

primary

#4287C0

secondary

#CBAC93

accent

#8D4EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4287C0

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

Preview Lab → · Contrast checker → · Palette generator →