#2B2588#2B2588

#2B2588 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.157 H 276.9°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#2B2588
RGB	rgb(43, 37, 136)
HSL	hsl(244, 57%, 34%)
HSV	hsv(244, 73%, 53%)
CMYK	cmyk(68.4%, 72.8%, 0%, 46.7%)
CIE-LAB	lab(22.35, 34.88, -54.12)
CIE-LCH	lch(22.35, 64.39, 302.80°)
OKLab	oklab(34.55% 0.019 -0.1563)
OKLCH	oklch(34.55% 0.157 276.9)
XYZ	xyz(6.1003, 3.6138, 23.6638)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B2588 #828825

analogous

#255188 #2B2588 #5D2588

triadic

#2B2588 #882B25 #25882B

tetradic

#2B2588 #882551 #828825 #25885D

square

#2B2588 #882551 #828825 #25885D

split-complementary

#2B2588 #885D25 #518825

monochromatic

#0D0B28 #1C1858 #2B2588 #3A32B8 #5E56D1

Accessibility & contrast

On white

12.19

#2B2588 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#2B2588 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B2588

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B2588	#FFFFFF	#000000	##FFFFFF
##2B2588	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8B

Deuteranopia (green-blind)

#003186

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #2b2588;
/* rgb */ color: rgb(43, 37, 136);
/* oklch */ color: oklch(34.5% 0.157 276.9);

Tailwind

colors: {
  custom: {
    50: '#7261ac',
    500: '#2b2588',
    950: '#000000',
  },
}

SCSS

$custom: #2b2588;
$custom-light: #7261ac;
$custom-dark: #000000;

JSON

{
  "hex": "#2b2588",
  "rgb": {
    "r": 43,
    "g": 37,
    "b": 136
  },
  "hsl": {
    "h": 243.636,
    "s": 57.225,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34547,
    "c": 0.15746,
    "h": 276.9
  },
  "luminance": 0.03614
}

Semantic roles & 50–950 ramp

primary

#2B2588

secondary

#B0B653

accent

#E047D7

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #2B2588

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

Preview Lab → · Contrast checker → · Palette generator →