#281B4E#281B4E

#281B4E is a dark, moderate violet. Relative luminance 0.018; OKLCH L 27.0% C 0.090 H 290.9°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#281B4E
RGB	rgb(40, 27, 78)
HSL	hsl(255, 49%, 21%)
HSV	hsv(255, 65%, 31%)
CMYK	cmyk(48.7%, 65.4%, 0%, 69.4%)
CIE-LAB	lab(14.32, 20.79, -29.39)
CIE-LCH	lch(14.32, 36.00, 305.27°)
OKLab	oklab(27.01% 0.032 -0.0838)
OKLCH	oklch(27.01% 0.09 290.9)
XYZ	xyz(2.6418, 1.7850, 7.4116)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B4E #414E1B

analogous

#1B274E #281B4E #411B4E

triadic

#281B4E #4E281B #1B4E28

tetradic

#281B4E #4E1B27 #414E1B #1B4E41

square

#281B4E #4E1B27 #414E1B #1B4E41

split-complementary

#281B4E #4E411B #274E1B

monochromatic

#0C0817 #110B21 #281B4E #3F2B7B #573AA9

Accessibility & contrast

On white

15.48

#281B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#281B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B4E

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B4E	#FFFFFF	#000000	##FFFFFF
##281B4E	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002550

Deuteranopia (green-blind)

#00234D

Tritanopia (blue-blind)

#1D2631

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #281b4e;
/* rgb */ color: rgb(40, 27, 78);
/* oklch */ color: oklch(27.0% 0.090 290.9);

Tailwind

colors: {
  custom: {
    50: '#655880',
    500: '#281b4e',
    950: '#000000',
  },
}

SCSS

$custom: #281b4e;
$custom-light: #655880;
$custom-dark: #000000;

JSON

{
  "hex": "#281b4e",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 78
  },
  "hsl": {
    "h": 255.294,
    "s": 48.571,
    "l": 20.588
  },
  "oklch": {
    "l": 0.2701,
    "c": 0.08976,
    "h": 290.9
  },
  "luminance": 0.01785
}

Semantic roles & 50–950 ramp

primary

#281B4E

secondary

#738441

accent

#D850B5

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#06030A

muted

#7A787C

Preview Lab

Preview with #281B4E

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

Preview Lab → · Contrast checker → · Palette generator →