#4271AB#4271AB

#4271AB is a mid, moderate cyan. Relative luminance 0.159; OKLCH L 54.2% C 0.105 H 254.6°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#4271AB
RGB	rgb(66, 113, 171)
HSL	hsl(213, 44%, 46%)
HSV	hsv(213, 61%, 67%)
CMYK	cmyk(61.4%, 33.9%, 0%, 32.9%)
CIE-LAB	lab(46.85, 2.25, -35.79)
CIE-LCH	lch(46.85, 35.86, 273.60°)
OKLab	oklab(54.2% -0.0279 -0.1012)
OKLCH	oklch(54.2% 0.105 254.6)
XYZ	xyz(15.4999, 15.9074, 40.7738)
Luminance	0.1591 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4271AB #AB7C42

analogous

#42A6AB #4271AB #4842AB

triadic

#4271AB #AB4271 #71AB42

tetradic

#4271AB #AB42A6 #AB7C42 #42AB48

square

#4271AB #AB42A6 #AB7C42 #42AB48

split-complementary

#4271AB #AB4842 #A6AB42

monochromatic

#203753 #31547F #4271AB #6690C4 #92B0D5

Accessibility & contrast

On white

5.02

#4271AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#4271AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4271AB

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4271AB	#FFFFFF	#000000	##FFFFFF
##4271AB	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5875AD

Deuteranopia (green-blind)

#4A6BAA

Tritanopia (blue-blind)

#007E86

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #4271ab;
/* rgb */ color: rgb(66, 113, 171);
/* oklch */ color: oklch(54.2% 0.105 254.6);

Tailwind

colors: {
  custom: {
    50: '#8099c4',
    500: '#4271ab',
    950: '#000000',
  },
}

SCSS

$custom: #4271ab;
$custom-light: #8099c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4271ab",
  "rgb": {
    "r": 66,
    "g": 113,
    "b": 171
  },
  "hsl": {
    "h": 213.143,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54203,
    "c": 0.10499,
    "h": 254.6
  },
  "luminance": 0.15909
}

Semantic roles & 50–950 ramp

primary

#4271AB

secondary

#C0A788

accent

#9B54D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D12

muted

#7C7E81

Preview Lab

Preview with #4271AB

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

Preview Lab → · Contrast checker → · Palette generator →