#4281CB#4281CB

#4281CB is a mid, vivid cyan. Relative luminance 0.212; OKLCH L 59.6% C 0.131 H 254.0°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#4281CB
RGB	rgb(66, 129, 203)
HSL	hsl(212, 57%, 53%)
HSV	hsv(212, 67%, 80%)
CMYK	cmyk(67.5%, 36.5%, 0%, 20.4%)
CIE-LAB	lab(53.13, 3.67, -44.29)
CIE-LCH	lch(53.13, 44.44, 274.74°)
OKLab	oklab(59.65% -0.0362 -0.1259)
OKLCH	oklch(59.65% 0.131 254)
XYZ	xyz(20.8726, 21.1684, 59.4742)
Luminance	0.2117 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281CB #CB8C42

analogous

#42C5CB #4281CB #4842CB

triadic

#4281CB #CB4281 #81CB42

tetradic

#4281CB #CB42C5 #CB8C42 #42CB48

square

#4281CB #CB42C5 #CB8C42 #42CB48

split-complementary

#4281CB #CB4842 #C5CB42

monochromatic

#204673 #2D63A3 #4281CB #72A1D8 #A2C1E5

Accessibility & contrast

On white

4.01

#4281CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#4281CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281CB

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281CB	#FFFFFF	#000000	##000000
##4281CB	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6086CE

Deuteranopia (green-blind)

#4C79CA

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4281cb;
/* rgb */ color: rgb(66, 129, 203);
/* oklch */ color: oklch(59.6% 0.131 254.0);

Tailwind

colors: {
  custom: {
    50: '#85a5db',
    500: '#4281cb',
    950: '#000000',
  },
}

SCSS

$custom: #4281cb;
$custom-light: #85a5db;
$custom-dark: #000000;

JSON

{
  "hex": "#4281cb",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 212.409,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.59647,
    "c": 0.13096,
    "h": 254
  },
  "luminance": 0.21171
}

Semantic roles & 50–950 ramp

primary

#4281CB

secondary

#D2B797

accent

#9A48E0

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4281CB

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

Preview Lab → · Contrast checker → · Palette generator →