#281E99#281E99

#281E99 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.2% C 0.187 H 274.6°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#281E99
RGB	rgb(40, 30, 153)
HSL	hsl(245, 67%, 36%)
HSV	hsv(245, 80%, 60%)
CMYK	cmyk(73.9%, 80.4%, 0%, 40%)
CIE-LAB	lab(22.58, 44.16, -64.30)
CIE-LCH	lch(22.58, 78.00, 304.48°)
OKLab	oklab(35.2% 0.015 -0.1859)
OKLCH	oklch(35.2% 0.187 274.6)
XYZ	xyz(7.0872, 3.6789, 30.4674)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281E99 #8F991E

analogous

#1E5199 #281E99 #651E99

triadic

#281E99 #99281E #1E9928

tetradic

#281E99 #991E51 #8F991E #1E9965

square

#281E99 #991E51 #8F991E #1E9965

split-complementary

#281E99 #99651E #51991E

monochromatic

#0D0A33 #1B1466 #281E99 #3528CC #5F54DD

Accessibility & contrast

On white

12.10

#281E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#281E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281E99

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281E99	#FFFFFF	#000000	##FFFFFF
##281E99	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9C

Deuteranopia (green-blind)

#003097

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281e99;
/* rgb */ color: rgb(40, 30, 153);
/* oklch */ color: oklch(35.2% 0.187 274.6);

Tailwind

colors: {
  custom: {
    50: '#755db8',
    500: '#281e99',
    950: '#000000',
  },
}

SCSS

$custom: #281e99;
$custom-light: #755db8;
$custom-dark: #000000;

JSON

{
  "hex": "#281e99",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 153
  },
  "hsl": {
    "h": 244.878,
    "s": 67.213,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35198,
    "c": 0.18655,
    "h": 274.6
  },
  "luminance": 0.0368
}

Semantic roles & 50–950 ramp

primary

#281E99

secondary

#B8C152

accent

#EA3EDC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281E99

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

Preview Lab → · Contrast checker → · Palette generator →