#281F77#281F77

#281F77 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.6% C 0.142 H 279.0°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#281F77
RGB	rgb(40, 31, 119)
HSL	hsl(246, 59%, 29%)
HSV	hsv(246, 74%, 47%)
CMYK	cmyk(66.4%, 73.9%, 0%, 53.3%)
CIE-LAB	lab(19.07, 32.29, -48.76)
CIE-LCH	lch(19.07, 58.49, 303.51°)
OKLab	oklab(31.62% 0.0224 -0.1407)
OKLCH	oklch(31.62% 0.142 279)
XYZ	xyz(4.6938, 2.7626, 17.7351)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F77 #6E771F

analogous

#1F4277 #281F77 #541F77

triadic

#281F77 #77281F #1F7728

tetradic

#281F77 #771F42 #6E771F #1F7754

square

#281F77 #771F42 #6E771F #1F7754

split-complementary

#281F77 #77541F #42771F

monochromatic

#080618 #181246 #281F77 #382CA8 #5143CE

Accessibility & contrast

On white

13.53

#281F77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#281F77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F77

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F77	#FFFFFF	#000000	##FFFFFF
##281F77	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327A

Deuteranopia (green-blind)

#002B75

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281f77;
/* rgb */ color: rgb(40, 31, 119);
/* oklch */ color: oklch(31.6% 0.142 279.0);

Tailwind

colors: {
  custom: {
    50: '#6d5c9f',
    500: '#281f77',
    950: '#000000',
  },
}

SCSS

$custom: #281f77;
$custom-light: #6d5c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#281f77",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 119
  },
  "hsl": {
    "h": 246.136,
    "s": 58.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31617,
    "c": 0.14248,
    "h": 279
  },
  "luminance": 0.02763
}

Semantic roles & 50–950 ramp

primary

#281F77

secondary

#A0AB47

accent

#E246D2

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #281F77

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

Preview Lab → · Contrast checker → · Palette generator →