#2B318F#2B318F

#2B318F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.153 H 273.5°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#2B318F
RGB	rgb(43, 49, 143)
HSL	hsl(236, 54%, 36%)
HSV	hsv(236, 70%, 56%)
CMYK	cmyk(69.9%, 65.7%, 0%, 43.9%)
CIE-LAB	lab(25.84, 29.74, -52.76)
CIE-LCH	lch(25.84, 60.56, 299.41°)
OKLab	oklab(37.28% 0.0093 -0.1523)
OKLCH	oklch(37.28% 0.153 273.5)
XYZ	xyz(7.0508, 4.6927, 26.5155)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B318F #8F892B

analogous

#2B638F #2B318F #572B8F

triadic

#2B318F #8F2B31 #318F2B

tetradic

#2B318F #8F2B63 #8F892B #2B8F57

square

#2B318F #8F2B63 #8F892B #2B8F57

split-complementary

#2B318F #8F572B #638F2B

monochromatic

#0F1131 #1D2160 #2B318F #3941BE #646BD0

Accessibility & contrast

On white

10.83

#2B318F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2B318F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B318F

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B318F	#FFFFFF	#000000	##FFFFFF
##2B318F	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004292

Deuteranopia (green-blind)

#00398D

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b318f;
/* rgb */ color: rgb(43, 49, 143);
/* oklch */ color: oklch(37.3% 0.153 273.5);

Tailwind

colors: {
  custom: {
    50: '#7269b1',
    500: '#2b318f',
    950: '#000000',
  },
}

SCSS

$custom: #2b318f;
$custom-light: #7269b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b318f",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 143
  },
  "hsl": {
    "h": 236.4,
    "s": 53.763,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37276,
    "c": 0.15256,
    "h": 273.5
  },
  "luminance": 0.04693
}

Semantic roles & 50–950 ramp

primary

#2B318F

secondary

#B7B15F

accent

#D44BDD

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B318F

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

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