#281B85#281B85

#281B85 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.165 H 277.6°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#281B85
RGB	rgb(40, 27, 133)
HSL	hsl(247, 66%, 31%)
HSV	hsv(247, 80%, 52%)
CMYK	cmyk(69.9%, 79.7%, 0%, 47.8%)
CIE-LAB	lab(19.75, 39.28, -56.53)
CIE-LCH	lch(19.75, 68.84, 304.79°)
OKLab	oklab(32.55% 0.0217 -0.1633)
OKLCH	oklch(32.55% 0.165 277.6)
XYZ	xyz(5.4993, 2.9280, 22.4611)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B85 #78851B

analogous

#1B4385 #281B85 #5D1B85

triadic

#281B85 #85281B #1B8528

tetradic

#281B85 #851B43 #78851B #1B855D

square

#281B85 #851B43 #78851B #1B855D

split-complementary

#281B85 #855D1B #43851B

monochromatic

#09061F #191152 #281B85 #3725B8 #5442D9

Accessibility & contrast

On white

13.24

#281B85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281B85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B85

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B85	#FFFFFF	#000000	##FFFFFF
##281B85	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003488

Deuteranopia (green-blind)

#002B83

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281b85;
/* rgb */ color: rgb(40, 27, 133);
/* oklch */ color: oklch(32.6% 0.165 277.6);

Tailwind

colors: {
  custom: {
    50: '#715aaa',
    500: '#281b85',
    950: '#000000',
  },
}

SCSS

$custom: #281b85;
$custom-light: #715aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#281b85",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 133
  },
  "hsl": {
    "h": 247.358,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32552,
    "c": 0.16476,
    "h": 277.6
  },
  "luminance": 0.02928
}

Semantic roles & 50–950 ramp

primary

#281B85

secondary

#AAB844

accent

#E93FD4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281B85

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

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