#281A4B#281A4B

#281A4B is a dark, moderate violet. Relative luminance 0.017; OKLCH L 26.6% C 0.087 H 292.7°. Best body text is #FFFFFF at 15.68:1 contrast (WCAG AA passes).

Color values

HEX	#281A4B
RGB	rgb(40, 26, 75)
HSL	hsl(257, 49%, 20%)
HSV	hsv(257, 65%, 29%)
CMYK	cmyk(46.7%, 65.3%, 0%, 70.6%)
CIE-LAB	lab(13.81, 20.47, -28.14)
CIE-LCH	lch(13.81, 34.80, 306.03°)
OKLab	oklab(26.57% 0.0335 -0.0802)
OKLCH	oklch(26.57% 0.087 292.7)
XYZ	xyz(2.5141, 1.6978, 6.8505)
Luminance	0.0170 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A4B #3D4B1A

analogous

#1A244B #281A4B #411A4B

triadic

#281A4B #4B281A #1A4B28

tetradic

#281A4B #4B1A24 #3D4B1A #1A4B41

square

#281A4B #4B1A24 #3D4B1A #1A4B41

split-complementary

#281A4B #4B411A #244B1A

monochromatic

#0C0817 #100A1E #281A4B #402A78 #583AA6

Accessibility & contrast

On white

15.68

#281A4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#281A4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A4B

15.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A4B	#FFFFFF	#000000	##FFFFFF
##281A4B	1.00	15.68	1.34	15.68
#FFFFFF	15.68	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244D

Deuteranopia (green-blind)

#02224A

Tritanopia (blue-blind)

#1E252F

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #281a4b;
/* rgb */ color: rgb(40, 26, 75);
/* oklch */ color: oklch(26.6% 0.087 292.7);

Tailwind

colors: {
  custom: {
    50: '#65577e',
    500: '#281a4b',
    950: '#000000',
  },
}

SCSS

$custom: #281a4b;
$custom-light: #65577e;
$custom-dark: #000000;

JSON

{
  "hex": "#281a4b",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 75
  },
  "hsl": {
    "h": 257.143,
    "s": 48.515,
    "l": 19.804
  },
  "oklch": {
    "l": 0.26565,
    "c": 0.08689,
    "h": 292.7
  },
  "luminance": 0.01698
}

Semantic roles & 50–950 ramp

primary

#281A4B

secondary

#6E8140

accent

#D850B1

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#06030A

muted

#7A787C

Preview Lab

Preview with #281A4B

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

Preview Lab → · Contrast checker → · Palette generator →