#281E9A#281E9A

#281E9A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.3% C 0.188 H 274.5°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#281E9A
RGB	rgb(40, 30, 154)
HSL	hsl(245, 67%, 36%)
HSV	hsv(245, 81%, 60%)
CMYK	cmyk(74%, 80.5%, 0%, 39.6%)
CIE-LAB	lab(22.70, 44.48, -64.72)
CIE-LCH	lch(22.70, 78.53, 304.50°)
OKLab	oklab(35.31% 0.0148 -0.1872)
OKLCH	oklch(35.31% 0.188 274.5)
XYZ	xyz(7.1701, 3.7120, 30.9042)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281E9A #909A1E

analogous

#1E529A #281E9A #661E9A

triadic

#281E9A #9A281E #1E9A28

tetradic

#281E9A #9A1E52 #909A1E #1E9A66

square

#281E9A #9A1E52 #909A1E #1E9A66

split-complementary

#281E9A #9A661E #529A1E

monochromatic

#0D0A34 #1B1467 #281E9A #3528CD #6055DE

Accessibility & contrast

On white

12.05

#281E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#281E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281E9A

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281E9A	#FFFFFF	#000000	##FFFFFF
##281E9A	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)

#003C9D

Deuteranopia (green-blind)

#003098

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281e9a;
/* rgb */ color: rgb(40, 30, 154);
/* oklch */ color: oklch(35.3% 0.188 274.5);

Tailwind

colors: {
  custom: {
    50: '#765db9',
    500: '#281e9a',
    950: '#000000',
  },
}

SCSS

$custom: #281e9a;
$custom-light: #765db9;
$custom-dark: #000000;

JSON

{
  "hex": "#281e9a",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 154
  },
  "hsl": {
    "h": 244.839,
    "s": 67.391,
    "l": 36.078
  },
  "oklch": {
    "l": 0.35313,
    "c": 0.18776,
    "h": 274.5
  },
  "luminance": 0.03713
}

Semantic roles & 50–950 ramp

primary

#281E9A

secondary

#B8C153

accent

#EA3EDC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281E9A

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

Preview Lab → · Contrast checker → · Palette generator →