#281B53#281B53

#281B53 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 27.4% C 0.097 H 289.0°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).

Color values

HEX	#281B53
RGB	rgb(40, 27, 83)
HSL	hsl(254, 51%, 22%)
HSV	hsv(254, 67%, 33%)
CMYK	cmyk(51.8%, 67.5%, 0%, 67.5%)
CIE-LAB	lab(14.73, 22.47, -32.13)
CIE-LCH	lch(14.73, 39.21, 304.97°)
OKLab	oklab(27.45% 0.0317 -0.0919)
OKLCH	oklch(27.45% 0.097 289)
XYZ	xyz(2.8279, 1.8594, 8.3918)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B53 #46531B

analogous

#1B2A53 #281B53 #441B53

triadic

#281B53 #53281B #1B5328

tetradic

#281B53 #531B2A #46531B #1B5344

square

#281B53 #531B2A #46531B #1B5344

split-complementary

#281B53 #53441B #2A531B

monochromatic

#0B0817 #120C25 #281B53 #3E2A81 #5539AF

Accessibility & contrast

On white

15.31

#281B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#281B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B53

15.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B53	#FFFFFF	#000000	##FFFFFF
##281B53	1.00	15.31	1.37	15.31
#FFFFFF	15.31	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002655

Deuteranopia (green-blind)

#002452

Tritanopia (blue-blind)

#1A2834

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #281b53;
/* rgb */ color: rgb(40, 27, 83);
/* oklch */ color: oklch(27.4% 0.097 289.0);

Tailwind

colors: {
  custom: {
    50: '#665884',
    500: '#281b53',
    950: '#000000',
  },
}

SCSS

$custom: #281b53;
$custom-light: #665884;
$custom-dark: #000000;

JSON

{
  "hex": "#281b53",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 83
  },
  "hsl": {
    "h": 253.929,
    "s": 50.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.27445,
    "c": 0.09722,
    "h": 289
  },
  "luminance": 0.0186
}

Semantic roles & 50–950 ramp

primary

#281B53

secondary

#788941

accent

#DA4DBA

background

#F6F5F8

surface

#EBE9EF

border

#C6C5CA

text

#06030B

muted

#7A787C

Preview Lab

Preview with #281B53

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

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