#28317C#28317C

#28317C is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.4% C 0.126 H 272.9°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#28317C
RGB	rgb(40, 49, 124)
HSL	hsl(234, 51%, 32%)
HSV	hsv(234, 68%, 49%)
CMYK	cmyk(67.7%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(24.01, 22.23, -43.87)
CIE-LCH	lch(24.01, 49.19, 296.87°)
OKLab	oklab(35.36% 0.0065 -0.1263)
OKLCH	oklch(35.36% 0.126 272.9)
XYZ	xyz(5.6103, 4.1025, 19.5611)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28317C #7C7328

analogous

#285B7C #28317C #49287C

triadic

#28317C #7C2831 #317C28

tetradic

#28317C #7C285B #7C7328 #287C49

square

#28317C #7C285B #7C7328 #287C49

split-complementary

#28317C #7C4928 #5B7C28

monochromatic

#0A0C1F #191F4E #28317C #3743AA #5662C8

Accessibility & contrast

On white

11.53

#28317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#28317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28317C

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28317C	#FFFFFF	#000000	##FFFFFF
##28317C	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7F

Deuteranopia (green-blind)

#00357B

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #28317c;
/* rgb */ color: rgb(40, 49, 124);
/* oklch */ color: oklch(35.4% 0.126 272.9);

Tailwind

colors: {
  custom: {
    50: '#6d69a3',
    500: '#28317c',
    950: '#000000',
  },
}

SCSS

$custom: #28317c;
$custom-light: #6d69a3;
$custom-dark: #000000;

JSON

{
  "hex": "#28317c",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 233.571,
    "s": 51.22,
    "l": 32.157
  },
  "oklch": {
    "l": 0.35363,
    "c": 0.12644,
    "h": 272.9
  },
  "luminance": 0.04103
}

Semantic roles & 50–950 ramp

primary

#28317C

secondary

#ADA452

accent

#CC4DDB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #28317C

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

Preview Lab → · Contrast checker → · Palette generator →