#2B3F88#2B3F88

#2B3F88 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.5% C 0.124 H 268.6°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#2B3F88
RGB	rgb(43, 63, 136)
HSL	hsl(227, 52%, 35%)
HSV	hsv(227, 68%, 53%)
CMYK	cmyk(68.4%, 53.7%, 0%, 46.7%)
CIE-LAB	lab(29.02, 17.67, -43.25)
CIE-LCH	lch(29.02, 46.72, 292.22°)
OKLab	oklab(39.46% -0.003 -0.1242)
OKLCH	oklch(39.46% 0.124 268.6)
XYZ	xyz(7.2162, 5.8455, 24.0358)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3F88 #88742B

analogous

#2B6D88 #2B3F88 #462B88

triadic

#2B3F88 #882B3F #3F882B

tetradic

#2B3F88 #882B6D #88742B #2B8846

square

#2B3F88 #882B6D #88742B #2B8846

split-complementary

#2B3F88 #88462B #6D882B

monochromatic

#0E142B #1C295A #2B3F88 #3A55B6 #6178CD

Accessibility & contrast

On white

9.68

#2B3F88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2B3F88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F88

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3F88	#FFFFFF	#000000	##FFFFFF
##2B3F88	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11498B

Deuteranopia (green-blind)

#004087

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b3f88;
/* rgb */ color: rgb(43, 63, 136);
/* oklch */ color: oklch(39.5% 0.124 268.6);

Tailwind

colors: {
  custom: {
    50: '#7073ab',
    500: '#2b3f88',
    950: '#000000',
  },
}

SCSS

$custom: #2b3f88;
$custom-light: #7073ab;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3f88",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 136
  },
  "hsl": {
    "h": 227.097,
    "s": 51.955,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39464,
    "c": 0.12424,
    "h": 268.6
  },
  "luminance": 0.05846
}

Semantic roles & 50–950 ramp

primary

#2B3F88

secondary

#B3A05C

accent

#BD4CDB

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2B3F88

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

Preview Lab → · Contrast checker → · Palette generator →