#281F6D#281F6D

#281F6D is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.129 H 280.8°. Best body text is #FFFFFF at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#281F6D
RGB	rgb(40, 31, 109)
HSL	hsl(247, 56%, 27%)
HSV	hsv(247, 72%, 43%)
CMYK	cmyk(63.3%, 71.6%, 0%, 57.3%)
CIE-LAB	lab(18.08, 28.83, -43.94)
CIE-LCH	lch(18.08, 52.55, 303.27°)
OKLab	oklab(30.6% 0.0242 -0.1266)
OKLCH	oklch(30.6% 0.129 280.8)
XYZ	xyz(4.1245, 2.5349, 14.7370)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F6D #646D1F

analogous

#1F3D6D #281F6D #4F1F6D

triadic

#281F6D #6D281F #1F6D28

tetradic

#281F6D #6D1F3D #646D1F #1F6D4F

square

#281F6D #6D1F3D #646D1F #1F6D4F

split-complementary

#281F6D #6D4F1F #3D6D1F

monochromatic

#090718 #17113D #281F6D #392D9D #4E3EC8

Accessibility & contrast

On white

13.93

#281F6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#281F6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F6D

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F6D	#FFFFFF	#000000	##FFFFFF
##281F6D	1.00	13.93	1.51	13.93
#FFFFFF	13.93	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F6F

Deuteranopia (green-blind)

#00296C

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281f6d;
/* rgb */ color: rgb(40, 31, 109);
/* oklch */ color: oklch(30.6% 0.129 280.8);

Tailwind

colors: {
  custom: {
    50: '#6b5b98',
    500: '#281f6d',
    950: '#000000',
  },
}

SCSS

$custom: #281f6d;
$custom-light: #6b5b98;
$custom-dark: #000000;

JSON

{
  "hex": "#281f6d",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 109
  },
  "hsl": {
    "h": 246.923,
    "s": 55.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30604,
    "c": 0.12886,
    "h": 280.8
  },
  "luminance": 0.02535
}

Semantic roles & 50–950 ramp

primary

#281F6D

secondary

#97A147

accent

#DF49CE

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #281F6D

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

Preview Lab → · Contrast checker → · Palette generator →