#2B377C#2B377C

#2B377C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.8% C 0.117 H 272.0°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#2B377C
RGB	rgb(43, 55, 124)
HSL	hsl(231, 49%, 33%)
HSV	hsv(231, 65%, 49%)
CMYK	cmyk(65.3%, 55.6%, 0%, 51.4%)
CIE-LAB	lab(25.86, 18.63, -40.85)
CIE-LCH	lch(25.86, 44.90, 294.51°)
OKLab	oklab(36.8% 0.004 -0.1172)
OKLCH	oklch(36.8% 0.117 272)
XYZ	xyz(5.9993, 4.7007, 19.6560)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B377C #7C702B

analogous

#2B5F7C #2B377C #472B7C

triadic

#2B377C #7C2B37 #377C2B

tetradic

#2B377C #7C2B5F #7C702B #2B7C47

square

#2B377C #7C2B5F #7C702B #2B7C47

split-complementary

#2B377C #7C472B #5F7C2B

monochromatic

#0B0F21 #1B234F #2B377C #3B4BA9 #5B6BC6

Accessibility & contrast

On white

10.82

#2B377C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2B377C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B377C

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B377C	#FFFFFF	#000000	##FFFFFF
##2B377C	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09417E

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b377c;
/* rgb */ color: rgb(43, 55, 124);
/* oklch */ color: oklch(36.8% 0.117 272.0);

Tailwind

colors: {
  custom: {
    50: '#6e6da2',
    500: '#2b377c',
    950: '#000000',
  },
}

SCSS

$custom: #2b377c;
$custom-light: #6e6da2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b377c",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 124
  },
  "hsl": {
    "h": 231.111,
    "s": 48.503,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36802,
    "c": 0.11732,
    "h": 272
  },
  "luminance": 0.04701
}

Semantic roles & 50–950 ramp

primary

#2B377C

secondary

#AC9F57

accent

#C450D8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #2B377C

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

Preview Lab → · Contrast checker → · Palette generator →