#2B377E#2B377E

#2B377E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.0% C 0.120 H 272.0°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#2B377E
RGB	rgb(43, 55, 126)
HSL	hsl(231, 49%, 33%)
HSV	hsv(231, 66%, 49%)
CMYK	cmyk(65.9%, 56.3%, 0%, 50.6%)
CIE-LAB	lab(26.02, 19.38, -41.87)
CIE-LCH	lch(26.02, 46.14, 294.84°)
OKLab	oklab(36.96% 0.0041 -0.1202)
OKLCH	oklch(36.96% 0.12 272)
XYZ	xyz(6.1271, 4.7518, 20.3289)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B377E #7E722B

analogous

#2B607E #2B377E #482B7E

triadic

#2B377E #7E2B37 #377E2B

tetradic

#2B377E #7E2B60 #7E722B #2B7E48

square

#2B377E #7E2B60 #7E722B #2B7E48

split-complementary

#2B377E #7E482B #607E2B

monochromatic

#0C0F23 #1B2350 #2B377E #3B4BAC #5C6CC7

Accessibility & contrast

On white

10.77

#2B377E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2B377E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B377E

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B377E	#FFFFFF	#000000	##FFFFFF
##2B377E	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044180

Deuteranopia (green-blind)

#003A7D

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b377e;
/* rgb */ color: rgb(43, 55, 126);
/* oklch */ color: oklch(37.0% 0.120 272.0);

Tailwind

colors: {
  custom: {
    50: '#6e6da4',
    500: '#2b377e',
    950: '#000000',
  },
}

SCSS

$custom: #2b377e;
$custom-light: #6e6da4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b377e",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 126
  },
  "hsl": {
    "h": 231.325,
    "s": 49.112,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36964,
    "c": 0.12031,
    "h": 272
  },
  "luminance": 0.04752
}

Semantic roles & 50–950 ramp

primary

#2B377E

secondary

#ADA158

accent

#C54FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B377E

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

Preview Lab → · Contrast checker → · Palette generator →