#28316E#28316E

#28316E is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.2% C 0.105 H 273.2°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#28316E
RGB	rgb(40, 49, 110)
HSL	hsl(232, 47%, 29%)
HSV	hsv(232, 64%, 43%)
CMYK	cmyk(63.6%, 55.5%, 0%, 56.9%)
CIE-LAB	lab(22.91, 16.95, -36.73)
CIE-LCH	lch(22.91, 40.45, 294.77°)
OKLab	oklab(34.19% 0.0059 -0.1053)
OKLCH	oklch(34.19% 0.105 273.2)
XYZ	xyz(4.7869, 3.7731, 15.2249)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28316E #6E6528

analogous

#28546E #28316E #42286E

triadic

#28316E #6E2831 #316E28

tetradic

#28316E #6E2854 #6E6528 #286E42

square

#28316E #6E2854 #6E6528 #286E42

split-complementary

#28316E #6E4228 #546E28

monochromatic

#080A16 #181D41 #28316E #38459B #515FC0

Accessibility & contrast

On white

11.97

#28316E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#28316E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28316E

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28316E	#FFFFFF	#000000	##FFFFFF
##28316E	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3A70

Deuteranopia (green-blind)

#00346D

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #28316e;
/* rgb */ color: rgb(40, 49, 110);
/* oklch */ color: oklch(34.2% 0.105 273.2);

Tailwind

colors: {
  custom: {
    50: '#6a6898',
    500: '#28316e',
    950: '#000000',
  },
}

SCSS

$custom: #28316e;
$custom-light: #6a6898;
$custom-dark: #000000;

JSON

{
  "hex": "#28316e",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 110
  },
  "hsl": {
    "h": 232.286,
    "s": 46.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.34191,
    "c": 0.10542,
    "h": 273.2
  },
  "luminance": 0.03774
}

Semantic roles & 50–950 ramp

primary

#28316E

secondary

#A09651

accent

#C551D6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #28316E

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

Preview Lab → · Contrast checker → · Palette generator →