#283179#283179

#283179 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.1% C 0.122 H 273.0°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#283179
RGB	rgb(40, 49, 121)
HSL	hsl(233, 50%, 32%)
HSV	hsv(233, 67%, 47%)
CMYK	cmyk(66.9%, 59.5%, 0%, 52.5%)
CIE-LAB	lab(23.76, 21.10, -42.37)
CIE-LCH	lch(23.76, 47.33, 296.47°)
OKLab	oklab(35.1% 0.0064 -0.1219)
OKLCH	oklch(35.1% 0.122 273)
XYZ	xyz(5.4234, 4.0277, 18.5771)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283179 #797028

analogous

#285A79 #283179 #482879

triadic

#283179 #792831 #317928

tetradic

#283179 #79285A #797028 #287948

square

#283179 #79285A #797028 #287948

split-complementary

#283179 #794828 #5A7928

monochromatic

#0A0C1D #191E4B #283179 #3744A7 #5561C7

Accessibility & contrast

On white

11.63

#283179 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#283179 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283179

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283179	#FFFFFF	#000000	##FFFFFF
##283179	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7B

Deuteranopia (green-blind)

#003578

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283179;
/* rgb */ color: rgb(40, 49, 121);
/* oklch */ color: oklch(35.1% 0.122 273.0);

Tailwind

colors: {
  custom: {
    50: '#6c69a0',
    500: '#283179',
    950: '#000000',
  },
}

SCSS

$custom: #283179;
$custom-light: #6c69a0;
$custom-dark: #000000;

JSON

{
  "hex": "#283179",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 121
  },
  "hsl": {
    "h": 233.333,
    "s": 50.311,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35104,
    "c": 0.12203,
    "h": 273
  },
  "luminance": 0.04028
}

Semantic roles & 50–950 ramp

primary

#283179

secondary

#ABA152

accent

#CA4EDA

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #283179

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

Preview Lab → · Contrast checker → · Palette generator →