#2B3183#2B3183

#2B3183 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.136 H 274.2°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#2B3183
RGB	rgb(43, 49, 131)
HSL	hsl(236, 51%, 34%)
HSV	hsv(236, 67%, 51%)
CMYK	cmyk(67.2%, 62.6%, 0%, 48.6%)
CIE-LAB	lab(24.79, 25.34, -47.00)
CIE-LCH	lch(24.79, 53.39, 298.33°)
OKLab	oklab(36.18% 0.0099 -0.1354)
OKLCH	oklch(36.18% 0.136 274.2)
XYZ	xyz(6.1900, 4.3484, 21.9814)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3183 #837D2B

analogous

#2B5D83 #2B3183 #512B83

triadic

#2B3183 #832B31 #31832B

tetradic

#2B3183 #832B5D #837D2B #2B8351

square

#2B3183 #832B5D #837D2B #2B8351

split-complementary

#2B3183 #83512B #5D832B

monochromatic

#0D0F27 #1C2055 #2B3183 #3A42B1 #5E66CA

Accessibility & contrast

On white

11.23

#2B3183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2B3183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3183

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3183	#FFFFFF	#000000	##FFFFFF
##2B3183	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F86

Deuteranopia (green-blind)

#003781

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b3183;
/* rgb */ color: rgb(43, 49, 131);
/* oklch */ color: oklch(36.2% 0.136 274.2);

Tailwind

colors: {
  custom: {
    50: '#7069a8',
    500: '#2b3183',
    950: '#000000',
  },
}

SCSS

$custom: #2b3183;
$custom-light: #7069a8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3183",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 131
  },
  "hsl": {
    "h": 235.909,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.36179,
    "c": 0.13574,
    "h": 274.2
  },
  "luminance": 0.04349
}

Semantic roles & 50–950 ramp

primary

#2B3183

secondary

#B0AA5A

accent

#D14EDA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2B3183

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

Preview Lab → · Contrast checker → · Palette generator →