#281C9D#281C9D

#281C9D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.4% C 0.193 H 274.4°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#281C9D
RGB	rgb(40, 28, 157)
HSL	hsl(246, 70%, 36%)
HSV	hsv(246, 82%, 62%)
CMYK	cmyk(74.5%, 82.2%, 0%, 38.4%)
CIE-LAB	lab(22.71, 46.41, -66.54)
CIE-LCH	lch(22.71, 81.13, 304.90°)
OKLab	oklab(35.42% 0.0147 -0.1924)
OKLCH	oklch(35.42% 0.193 274.4)
XYZ	xyz(7.3741, 3.7152, 32.2202)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C9D #919D1C

analogous

#1C519D #281C9D #691C9D

triadic

#281C9D #9D281C #1C9D28

tetradic

#281C9D #9D1C51 #919D1C #1C9D69

square

#281C9D #9D1C51 #919D1C #1C9D69

split-complementary

#281C9D #9D691C #519D1C

monochromatic

#0E0935 #1B1369 #281C9D #3525D1 #6053E0

Accessibility & contrast

On white

12.05

#281C9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#281C9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C9D

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C9D	#FFFFFF	#000000	##FFFFFF
##281C9D	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA1

Deuteranopia (green-blind)

#00309B

Tritanopia (blue-blind)

#00455D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281c9d;
/* rgb */ color: rgb(40, 28, 157);
/* oklch */ color: oklch(35.4% 0.193 274.4);

Tailwind

colors: {
  custom: {
    50: '#765cbb',
    500: '#281c9d',
    950: '#000000',
  },
}

SCSS

$custom: #281c9d;
$custom-light: #765cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#281c9d",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 157
  },
  "hsl": {
    "h": 245.581,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35423,
    "c": 0.19299,
    "h": 274.4
  },
  "luminance": 0.03716
}

Semantic roles & 50–950 ramp

primary

#281C9D

secondary

#B9C351

accent

#ED3BDC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281C9D

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

Preview Lab → · Contrast checker → · Palette generator →