#281B5C#281B5C

#281B5C is a dark, moderate violet. Relative luminance 0.020; OKLCH L 28.3% C 0.110 H 286.2°. Best body text is #FFFFFF at 14.98:1 contrast (WCAG AA passes).

Color values

HEX	#281B5C
RGB	rgb(40, 27, 92)
HSL	hsl(252, 55%, 23%)
HSV	hsv(252, 71%, 36%)
CMYK	cmyk(56.5%, 70.7%, 0%, 63.9%)
CIE-LAB	lab(15.53, 25.53, -36.90)
CIE-LCH	lch(15.53, 44.87, 304.68°)
OKLab	oklab(28.27% 0.0307 -0.1059)
OKLCH	oklch(28.27% 0.11 286.2)
XYZ	xyz(3.1982, 2.0075, 10.3421)
Luminance	0.0201 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B5C #4F5C1B

analogous

#1B2E5C #281B5C #481B5C

triadic

#281B5C #5C281B #1B5C28

tetradic

#281B5C #5C1B2E #4F5C1B #1B5C48

square

#281B5C #5C1B2E #4F5C1B #1B5C48

split-complementary

#281B5C #5C481B #2E5C1B

monochromatic

#0A0718 #130D2D #281B5C #3D298B #5137BB

Accessibility & contrast

On white

14.98

#281B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#281B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B5C

14.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B5C	#FFFFFF	#000000	##FFFFFF
##281B5C	1.00	14.98	1.40	14.98
#FFFFFF	14.98	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285E

Deuteranopia (green-blind)

#00255B

Tritanopia (blue-blind)

#132B38

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #281b5c;
/* rgb */ color: rgb(40, 27, 92);
/* oklch */ color: oklch(28.3% 0.110 286.2);

Tailwind

colors: {
  custom: {
    50: '#68588b',
    500: '#281b5c',
    950: '#000000',
  },
}

SCSS

$custom: #281b5c;
$custom-light: #68588b;
$custom-dark: #000000;

JSON

{
  "hex": "#281b5c",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 92
  },
  "hsl": {
    "h": 252,
    "s": 54.622,
    "l": 23.333
  },
  "oklch": {
    "l": 0.28271,
    "c": 0.11029,
    "h": 286.2
  },
  "luminance": 0.02008
}

Semantic roles & 50–950 ramp

primary

#281B5C

secondary

#829241

accent

#DE4AC0

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #281B5C

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

Preview Lab → · Contrast checker → · Palette generator →