#281981#281981

#281981 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.162 H 278.5°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#281981
RGB	rgb(40, 25, 129)
HSL	hsl(249, 68%, 30%)
HSV	hsv(249, 81%, 51%)
CMYK	cmyk(69%, 80.6%, 0%, 49.4%)
CIE-LAB	lab(18.93, 39.05, -55.36)
CIE-LCH	lch(18.93, 67.74, 305.20°)
OKLab	oklab(31.85% 0.0239 -0.1599)
OKLCH	oklch(31.85% 0.162 278.5)
XYZ	xyz(5.1839, 2.7309, 21.0186)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281981 #728119

analogous

#193E81 #281981 #5C1981

triadic

#281981 #812819 #198128

tetradic

#281981 #81193E #728119 #19815C

square

#281981 #81193E #728119 #19815C

split-complementary

#281981 #815C19 #3E8119

monochromatic

#08051A #180F4E #281981 #3823B4 #523BD9

Accessibility & contrast

On white

13.58

#281981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#281981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281981

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281981	#FFFFFF	#000000	##FFFFFF
##281981	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003284

Deuteranopia (green-blind)

#002A7F

Tritanopia (blue-blind)

#00384D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281981;
/* rgb */ color: rgb(40, 25, 129);
/* oklch */ color: oklch(31.8% 0.162 278.5);

Tailwind

colors: {
  custom: {
    50: '#7059a7',
    500: '#281981',
    950: '#000000',
  },
}

SCSS

$custom: #281981;
$custom-light: #7059a7;
$custom-dark: #000000;

JSON

{
  "hex": "#281981",
  "rgb": {
    "r": 40,
    "g": 25,
    "b": 129
  },
  "hsl": {
    "h": 248.654,
    "s": 67.532,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31845,
    "c": 0.16167,
    "h": 278.5
  },
  "luminance": 0.02731
}

Semantic roles & 50–950 ramp

primary

#281981

secondary

#A4B541

accent

#EA3DD1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281981

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

Preview Lab → · Contrast checker → · Palette generator →