#2B377F#2B377F

#2B377F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.0% C 0.122 H 272.0°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#2B377F
RGB	rgb(43, 55, 127)
HSL	hsl(231, 49%, 33%)
HSV	hsv(231, 66%, 50%)
CMYK	cmyk(66.1%, 56.7%, 0%, 50.2%)
CIE-LAB	lab(26.09, 19.76, -42.37)
CIE-LCH	lch(26.09, 46.75, 295.00°)
OKLab	oklab(37.05% 0.0042 -0.1217)
OKLCH	oklch(37.05% 0.122 272)
XYZ	xyz(6.1919, 4.7777, 20.6704)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B377F #7F732B

analogous

#2B617F #2B377F #492B7F

triadic

#2B377F #7F2B37 #377F2B

tetradic

#2B377F #7F2B61 #7F732B #2B7F49

square

#2B377F #7F2B61 #7F732B #2B7F49

split-complementary

#2B377F #7F492B #617F2B

monochromatic

#0C0F24 #1C2351 #2B377F #3A4BAD #5C6CC8

Accessibility & contrast

On white

10.74

#2B377F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2B377F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B377F

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B377F	#FFFFFF	#000000	##FFFFFF
##2B377F	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014281

Deuteranopia (green-blind)

#003A7E

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b377f;
/* rgb */ color: rgb(43, 55, 127);
/* oklch */ color: oklch(37.0% 0.122 272.0);

Tailwind

colors: {
  custom: {
    50: '#6e6da5',
    500: '#2b377f',
    950: '#000000',
  },
}

SCSS

$custom: #2b377f;
$custom-light: #6e6da5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b377f",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 127
  },
  "hsl": {
    "h": 231.429,
    "s": 49.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.37045,
    "c": 0.12179,
    "h": 272
  },
  "luminance": 0.04778
}

Semantic roles & 50–950 ramp

primary

#2B377F

secondary

#AEA258

accent

#C54FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B377F

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

Preview Lab → · Contrast checker → · Palette generator →