#4281AA#4281AA

#4281AA is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.9% C 0.091 H 239.5°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#4281AA
RGB	rgb(66, 129, 170)
HSL	hsl(204, 44%, 46%)
HSV	hsv(204, 61%, 67%)
CMYK	cmyk(61.2%, 24.1%, 0%, 33.3%)
CIE-LAB	lab(51.56, -7.59, -27.84)
CIE-LCH	lch(51.56, 28.86, 254.75°)
OKLab	oklab(57.9% -0.046 -0.0781)
OKLCH	oklch(57.9% 0.091 239.5)
XYZ	xyz(17.3500, 19.7594, 40.9220)
Luminance	0.1976 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281AA #AA6B42

analogous

#42AA9F #4281AA #424DAA

triadic

#4281AA #AA4281 #81AA42

tetradic

#4281AA #9F42AA #AA6B42 #4DAA42

square

#4281AA #9F42AA #AA6B42 #4DAA42

split-complementary

#4281AA #AA424D #AA9F42

monochromatic

#203E52 #31607E #4281AA #669FC3 #92BAD5

Accessibility & contrast

On white

4.24

#4281AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#4281AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281AA

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281AA	#FFFFFF	#000000	##000000
##4281AA	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E81AC

Deuteranopia (green-blind)

#6076A9

Tritanopia (blue-blind)

#008B8F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4281aa;
/* rgb */ color: rgb(66, 129, 170);
/* oklch */ color: oklch(57.9% 0.091 239.5);

Tailwind

colors: {
  custom: {
    50: '#80a5c3',
    500: '#4281aa',
    950: '#000000',
  },
}

SCSS

$custom: #4281aa;
$custom-light: #80a5c3;
$custom-dark: #000000;

JSON

{
  "hex": "#4281aa",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 170
  },
  "hsl": {
    "h": 203.654,
    "s": 44.068,
    "l": 46.275
  },
  "oklch": {
    "l": 0.57897,
    "c": 0.09064,
    "h": 239.5
  },
  "luminance": 0.19761
}

Semantic roles & 50–950 ramp

primary

#4281AA

secondary

#C09E88

accent

#8654D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #4281AA

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

Preview Lab → · Contrast checker → · Palette generator →