#2B318B#2B318B

#2B318B is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.147 H 273.7°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#2B318B
RGB	rgb(43, 49, 139)
HSL	hsl(236, 53%, 36%)
HSV	hsv(236, 69%, 55%)
CMYK	cmyk(69.1%, 64.7%, 0%, 45.5%)
CIE-LAB	lab(25.48, 28.28, -50.86)
CIE-LCH	lch(25.48, 58.19, 299.08°)
OKLab	oklab(36.9% 0.0096 -0.1467)
OKLCH	oklch(36.9% 0.147 273.7)
XYZ	xyz(6.7532, 4.5737, 24.9480)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B318B #8B852B

analogous

#2B618B #2B318B #552B8B

triadic

#2B318B #8B2B31 #318B2B

tetradic

#2B318B #8B2B61 #8B852B #2B8B55

square

#2B318B #8B2B61 #8B852B #2B8B55

split-complementary

#2B318B #8B552B #618B2B

monochromatic

#0E102E #1D215C #2B318B #3941BA #6269CE

Accessibility & contrast

On white

10.97

#2B318B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#2B318B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B318B

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B318B	#FFFFFF	#000000	##FFFFFF
##2B318B	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003889

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2b318b;
/* rgb */ color: rgb(43, 49, 139);
/* oklch */ color: oklch(36.9% 0.147 273.7);

Tailwind

colors: {
  custom: {
    50: '#7169ae',
    500: '#2b318b',
    950: '#000000',
  },
}

SCSS

$custom: #2b318b;
$custom-light: #7169ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2b318b",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 139
  },
  "hsl": {
    "h": 236.25,
    "s": 52.747,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36904,
    "c": 0.14703,
    "h": 273.7
  },
  "luminance": 0.04574
}

Semantic roles & 50–950 ramp

primary

#2B318B

secondary

#B5AF5D

accent

#D34CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2B318B

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

Preview Lab → · Contrast checker → · Palette generator →