#2B3883#2B3883

#2B3883 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.6% C 0.126 H 271.5°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#2B3883
RGB	rgb(43, 56, 131)
HSL	hsl(231, 51%, 34%)
HSV	hsv(231, 67%, 51%)
CMYK	cmyk(67.2%, 57.3%, 0%, 48.6%)
CIE-LAB	lab(26.68, 20.57, -43.93)
CIE-LCH	lch(26.68, 48.51, 295.09°)
OKLab	oklab(37.58% 0.0034 -0.1263)
OKLCH	oklch(37.58% 0.126 271.5)
XYZ	xyz(6.5058, 4.9801, 22.0867)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3883 #83762B

analogous

#2B6483 #2B3883 #4A2B83

triadic

#2B3883 #832B38 #38832B

tetradic

#2B3883 #832B64 #83762B #2B834A

square

#2B3883 #832B64 #83762B #2B834A

split-complementary

#2B3883 #834A2B #64832B

monochromatic

#0D1127 #1C2455 #2B3883 #3A4CB1 #5E6ECA

Accessibility & contrast

On white

10.52

#2B3883 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2B3883 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3883

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3883	#FFFFFF	#000000	##FFFFFF
##2B3883	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004386

Deuteranopia (green-blind)

#003B81

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2b3883;
/* rgb */ color: rgb(43, 56, 131);
/* oklch */ color: oklch(37.6% 0.126 271.5);

Tailwind

colors: {
  custom: {
    50: '#6f6ea8',
    500: '#2b3883',
    950: '#000000',
  },
}

SCSS

$custom: #2b3883;
$custom-light: #6f6ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3883",
  "rgb": {
    "r": 43,
    "g": 56,
    "b": 131
  },
  "hsl": {
    "h": 231.136,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.37582,
    "c": 0.12634,
    "h": 271.5
  },
  "luminance": 0.04981
}

Semantic roles & 50–950 ramp

primary

#2B3883

secondary

#B0A35A

accent

#C54EDA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2B3883

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

Preview Lab → · Contrast checker → · Palette generator →