#281B86#281B86

#281B86 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.7% C 0.166 H 277.4°. Best body text is #FFFFFF at 13.20:1 contrast (WCAG AA passes).

Color values

HEX	#281B86
RGB	rgb(40, 27, 134)
HSL	hsl(247, 66%, 32%)
HSV	hsv(247, 80%, 53%)
CMYK	cmyk(70.1%, 79.9%, 0%, 47.5%)
CIE-LAB	lab(19.87, 39.60, -56.97)
CIE-LCH	lch(19.87, 69.39, 304.80°)
OKLab	oklab(32.66% 0.0214 -0.1646)
OKLCH	oklch(32.66% 0.166 277.4)
XYZ	xyz(5.5687, 2.9557, 22.8267)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B86 #79861B

analogous

#1B4486 #281B86 #5E1B86

triadic

#281B86 #86281B #1B8628

tetradic

#281B86 #861B44 #79861B #1B865E

square

#281B86 #861B44 #79861B #1B865E

split-complementary

#281B86 #865E1B #44861B

monochromatic

#0A0620 #191153 #281B86 #3725B9 #5542D9

Accessibility & contrast

On white

13.20

#281B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B86

13.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B86	#FFFFFF	#000000	##FFFFFF
##281B86	1.00	13.20	1.59	13.20
#FFFFFF	13.20	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003489

Deuteranopia (green-blind)

#002B84

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281b86;
/* rgb */ color: rgb(40, 27, 134);
/* oklch */ color: oklch(32.7% 0.166 277.4);

Tailwind

colors: {
  custom: {
    50: '#715aaa',
    500: '#281b86',
    950: '#000000',
  },
}

SCSS

$custom: #281b86;
$custom-light: #715aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#281b86",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 134
  },
  "hsl": {
    "h": 247.29,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32664,
    "c": 0.16601,
    "h": 277.4
  },
  "luminance": 0.02956
}

Semantic roles & 50–950 ramp

primary

#281B86

secondary

#ABB944

accent

#E93ED5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281B86

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

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