#281D90#281D90

#281D90 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.0% C 0.177 H 275.8°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#281D90
RGB	rgb(40, 29, 144)
HSL	hsl(246, 66%, 34%)
HSV	hsv(246, 80%, 56%)
CMYK	cmyk(72.2%, 79.9%, 0%, 43.5%)
CIE-LAB	lab(21.37, 41.78, -60.74)
CIE-LCH	lch(21.37, 73.72, 304.52°)
OKLab	oklab(34.05% 0.0178 -0.1756)
OKLCH	oklch(34.05% 0.177 275.8)
XYZ	xyz(6.3468, 3.3429, 26.6909)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D90 #85901D

analogous

#1D4C90 #281D90 #621D90

triadic

#281D90 #90281D #1D9028

tetradic

#281D90 #901D4C #85901D #1D9062

square

#281D90 #901D4C #85901D #1D9062

split-complementary

#281D90 #90621D #4C901D

monochromatic

#0C082A #1A135D #281D90 #3627C3 #5A4CDB

Accessibility & contrast

On white

12.59

#281D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#281D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D90

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D90	#FFFFFF	#000000	##FFFFFF
##281D90	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003893

Deuteranopia (green-blind)

#002E8E

Tritanopia (blue-blind)

#004056

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #281d90;
/* rgb */ color: rgb(40, 29, 144);
/* oklch */ color: oklch(34.0% 0.177 275.8);

Tailwind

colors: {
  custom: {
    50: '#735cb2',
    500: '#281d90',
    950: '#000000',
  },
}

SCSS

$custom: #281d90;
$custom-light: #735cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#281d90",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 144
  },
  "hsl": {
    "h": 245.739,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34049,
    "c": 0.17651,
    "h": 275.8
  },
  "luminance": 0.03343
}

Semantic roles & 50–950 ramp

primary

#281D90

secondary

#B3BD4B

accent

#E93ED9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #281D90

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

Preview Lab → · Contrast checker → · Palette generator →