#281B97#281B97

#281B97 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.6% C 0.187 H 275.1°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#281B97
RGB	rgb(40, 27, 151)
HSL	hsl(246, 70%, 35%)
HSV	hsv(246, 82%, 59%)
CMYK	cmyk(73.5%, 82.1%, 0%, 40.8%)
CIE-LAB	lab(21.83, 45.02, -64.31)
CIE-LCH	lch(21.83, 78.50, 305.00°)
OKLab	oklab(34.61% 0.0167 -0.1859)
OKLCH	oklch(34.61% 0.187 275.1)
XYZ	xyz(6.8511, 3.4687, 29.5806)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B97 #8A971B

analogous

#1B4C97 #281B97 #661B97

triadic

#281B97 #97281B #1B9728

tetradic

#281B97 #971B4C #8A971B #1B9766

square

#281B97 #971B4C #8A971B #1B9766

split-complementary

#281B97 #97661B #4C971B

monochromatic

#0C082F #1A1263 #281B97 #3624CB #5D4DDF

Accessibility & contrast

On white

12.40

#281B97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#281B97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B97

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B97	#FFFFFF	#000000	##FFFFFF
##281B97	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9A

Deuteranopia (green-blind)

#002F95

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #281b97;
/* rgb */ color: rgb(40, 27, 151);
/* oklch */ color: oklch(34.6% 0.187 275.1);

Tailwind

colors: {
  custom: {
    50: '#755bb7',
    500: '#281b97',
    950: '#000000',
  },
}

SCSS

$custom: #281b97;
$custom-light: #755bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#281b97",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 151
  },
  "hsl": {
    "h": 246.29,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.34609,
    "c": 0.18669,
    "h": 275.1
  },
  "luminance": 0.03469
}

Semantic roles & 50–950 ramp

primary

#281B97

secondary

#B5C14C

accent

#EC3BDA

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #281B97

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

Preview Lab → · Contrast checker → · Palette generator →