#271B66#271B66

#271B66 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.2% C 0.124 H 282.8°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#271B66
RGB	rgb(39, 27, 102)
HSL	hsl(250, 58%, 25%)
HSV	hsv(250, 74%, 40%)
CMYK	cmyk(61.8%, 73.5%, 0%, 60%)
CIE-LAB	lab(16.38, 28.77, -42.14)
CIE-LCH	lch(16.38, 51.03, 304.32°)
OKLab	oklab(29.15% 0.0275 -0.1213)
OKLCH	oklch(29.15% 0.124 282.8)
XYZ	xyz(3.6262, 2.1743, 12.7964)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B66 #5A661B

analogous

#1B3466 #271B66 #4C1B66

triadic

#271B66 #66271B #1B6627

tetradic

#271B66 #661B34 #5A661B #1B664C

square

#271B66 #661B34 #5A661B #1B664C

split-complementary

#271B66 #664C1B #34661B

monochromatic

#090618 #140E36 #271B66 #3A2896 #4C35C7

Accessibility & contrast

On white

14.63

#271B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#271B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B66

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B66	#FFFFFF	#000000	##FFFFFF
##271B66	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B68

Deuteranopia (green-blind)

#002665

Tritanopia (blue-blind)

#032F3E

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #271b66;
/* rgb */ color: rgb(39, 27, 102);
/* oklch */ color: oklch(29.2% 0.124 282.8);

Tailwind

colors: {
  custom: {
    50: '#695892',
    500: '#271b66',
    950: '#000000',
  },
}

SCSS

$custom: #271b66;
$custom-light: #695892;
$custom-dark: #000000;

JSON

{
  "hex": "#271b66",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 249.6,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.29152,
    "c": 0.12443,
    "h": 282.8
  },
  "luminance": 0.02175
}

Semantic roles & 50–950 ramp

primary

#271B66

secondary

#8D9B41

accent

#E146C9

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07030D

muted

#7A787E

Preview Lab

Preview with #271B66

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

Preview Lab → · Contrast checker → · Palette generator →