#281B33#281B33

#281B33 is a dark, muted violet. Relative luminance 0.015; OKLCH L 25.0% C 0.047 H 308.2°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#281B33
RGB	rgb(40, 27, 51)
HSL	hsl(273, 31%, 15%)
HSV	hsv(273, 47%, 20%)
CMYK	cmyk(21.6%, 47.1%, 0%, 80%)
CIE-LAB	lab(12.44, 12.25, -13.43)
CIE-LCH	lch(12.44, 18.18, 312.37°)
OKLab	oklab(25.01% 0.0293 -0.0372)
OKLCH	oklch(25.01% 0.047 308.2)
XYZ	xyz(1.8644, 1.4740, 3.3176)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B33 #26331B

analogous

#1C1B33 #281B33 #331B32

triadic

#281B33 #33281B #1B3328

tetradic

#281B33 #331C1B #26331B #1B3233

square

#281B33 #331C1B #26331B #1B3233

split-complementary

#281B33 #32331B #1B331C

monochromatic

#100B14 #100B14 #281B33 #47305B #674583

Accessibility & contrast

On white

16.22

#281B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#281B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B33

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B33	#FFFFFF	#000000	##FFFFFF
##281B33	1.00	16.22	1.29	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#162034

Deuteranopia (green-blind)

#192132

Tritanopia (blue-blind)

#271F24

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #281b33;
/* rgb */ color: rgb(40, 27, 51);
/* oklch */ color: oklch(25.0% 0.047 308.2);

Tailwind

colors: {
  custom: {
    50: '#62576a',
    500: '#281b33',
    950: '#000000',
  },
}

SCSS

$custom: #281b33;
$custom-light: #62576a;
$custom-dark: #000000;

JSON

{
  "hex": "#281b33",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 51
  },
  "hsl": {
    "h": 272.5,
    "s": 30.769,
    "l": 15.294
  },
  "oklch": {
    "l": 0.25011,
    "c": 0.04736,
    "h": 308.2
  },
  "luminance": 0.01474
}

Semantic roles & 50–950 ramp

primary

#281B33

secondary

#536743

accent

#C76190

background

#F5F5F6

surface

#EAE9EB

border

#C6C5C6

text

#050306

muted

#79787A

Preview Lab

Preview with #281B33

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

Preview Lab → · Contrast checker → · Palette generator →