#2B337D#2B337D

#2B337D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.1% C 0.124 H 273.7°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#2B337D
RGB	rgb(43, 51, 125)
HSL	hsl(234, 49%, 33%)
HSV	hsv(234, 66%, 49%)
CMYK	cmyk(65.6%, 59.2%, 0%, 51%)
CIE-LAB	lab(24.83, 21.76, -43.16)
CIE-LCH	lch(24.83, 48.33, 296.75°)
OKLab	oklab(36.05% 0.0081 -0.1241)
OKLCH	oklch(36.05% 0.124 273.7)
XYZ	xyz(5.8805, 4.3614, 19.9300)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B337D #7D752B

analogous

#2B5C7D #2B337D #4C2B7D

triadic

#2B337D #7D2B33 #337D2B

tetradic

#2B337D #7D2B5C #7D752B #2B7D4C

square

#2B337D #7D2B5C #7D752B #2B7D4C

split-complementary

#2B337D #7D4C2B #5C7D2B

monochromatic

#0C0E22 #1B204F #2B337D #3B46AB #5C66C7

Accessibility & contrast

On white

11.22

#2B337D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2B337D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B337D

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B337D	#FFFFFF	#000000	##FFFFFF
##2B337D	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F80

Deuteranopia (green-blind)

#00377C

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b337d;
/* rgb */ color: rgb(43, 51, 125);
/* oklch */ color: oklch(36.1% 0.124 273.7);

Tailwind

colors: {
  custom: {
    50: '#6e6aa3',
    500: '#2b337d',
    950: '#000000',
  },
}

SCSS

$custom: #2b337d;
$custom-light: #6e6aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b337d",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 125
  },
  "hsl": {
    "h": 234.146,
    "s": 48.81,
    "l": 32.941
  },
  "oklch": {
    "l": 0.36054,
    "c": 0.12433,
    "h": 273.7
  },
  "luminance": 0.04362
}

Semantic roles & 50–950 ramp

primary

#2B337D

secondary

#ADA457

accent

#CB4FD8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2B337D

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

Preview Lab → · Contrast checker → · Palette generator →