#28316D#28316D

#28316D is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.1% C 0.104 H 273.2°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#28316D
RGB	rgb(40, 49, 109)
HSL	hsl(232, 46%, 29%)
HSV	hsv(232, 63%, 43%)
CMYK	cmyk(63.3%, 55%, 0%, 57.3%)
CIE-LAB	lab(22.83, 16.57, -36.20)
CIE-LCH	lch(22.83, 39.81, 294.59°)
OKLab	oklab(34.11% 0.0058 -0.1037)
OKLCH	oklch(34.11% 0.104 273.2)
XYZ	xyz(4.7328, 3.7515, 14.9397)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28316D #6D6428

analogous

#28546D #28316D #42286D

triadic

#28316D #6D2831 #316D28

tetradic

#28316D #6D2854 #6D6428 #286D42

square

#28316D #6D2854 #6D6428 #286D42

split-complementary

#28316D #6D4228 #546D28

monochromatic

#080A16 #181D40 #28316D #38459A #505FBF

Accessibility & contrast

On white

12.00

#28316D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#28316D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28316D

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28316D	#FFFFFF	#000000	##FFFFFF
##28316D	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3A6F

Deuteranopia (green-blind)

#00346C

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28316d;
/* rgb */ color: rgb(40, 49, 109);
/* oklch */ color: oklch(34.1% 0.104 273.2);

Tailwind

colors: {
  custom: {
    50: '#696897',
    500: '#28316d',
    950: '#000000',
  },
}

SCSS

$custom: #28316d;
$custom-light: #696897;
$custom-dark: #000000;

JSON

{
  "hex": "#28316d",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 109
  },
  "hsl": {
    "h": 232.174,
    "s": 46.309,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34111,
    "c": 0.10388,
    "h": 273.2
  },
  "luminance": 0.03752
}

Semantic roles & 50–950 ramp

primary

#28316D

secondary

#9F9551

accent

#C552D6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #28316D

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

Preview Lab → · Contrast checker → · Palette generator →