#2B3983#2B3983

#2B3983 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.125 H 271.1°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#2B3983
RGB	rgb(43, 57, 131)
HSL	hsl(230, 51%, 34%)
HSV	hsv(230, 67%, 51%)
CMYK	cmyk(67.2%, 56.5%, 0%, 48.6%)
CIE-LAB	lab(26.96, 19.89, -43.48)
CIE-LCH	lch(26.96, 47.81, 294.58°)
OKLab	oklab(37.79% 0.0024 -0.1249)
OKLCH	oklch(37.79% 0.125 271.1)
XYZ	xyz(6.5547, 5.0780, 22.1030)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3983 #83752B

analogous

#2B6583 #2B3983 #492B83

triadic

#2B3983 #832B39 #39832B

tetradic

#2B3983 #832B65 #83752B #2B8349

square

#2B3983 #832B65 #83752B #2B8349

split-complementary

#2B3983 #83492B #65832B

monochromatic

#0D1127 #1C2555 #2B3983 #3A4DB1 #5E6FCA

Accessibility & contrast

On white

10.42

#2B3983 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2B3983 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3983

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3983	#FFFFFF	#000000	##FFFFFF
##2B3983	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014486

Deuteranopia (green-blind)

#003C82

Tritanopia (blue-blind)

#004B58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2b3983;
/* rgb */ color: rgb(43, 57, 131);
/* oklch */ color: oklch(37.8% 0.125 271.1);

Tailwind

colors: {
  custom: {
    50: '#6f6fa8',
    500: '#2b3983',
    950: '#000000',
  },
}

SCSS

$custom: #2b3983;
$custom-light: #6f6fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3983",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 131
  },
  "hsl": {
    "h": 230.455,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.3779,
    "c": 0.12497,
    "h": 271.1
  },
  "luminance": 0.05079
}

Semantic roles & 50–950 ramp

primary

#2B3983

secondary

#B0A25A

accent

#C44EDA

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2B3983

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

Preview Lab → · Contrast checker → · Palette generator →