#2C378D#2C378D

#2C378D is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.142 H 272.3°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#2C378D
RGB	rgb(44, 55, 141)
HSL	hsl(233, 52%, 36%)
HSV	hsv(233, 69%, 55%)
CMYK	cmyk(68.8%, 61%, 0%, 44.7%)
CIE-LAB	lab(27.27, 25.16, -49.18)
CIE-LCH	lch(27.27, 55.24, 297.09°)
OKLab	oklab(38.29% 0.0056 -0.1417)
OKLCH	oklch(38.29% 0.142 272.3)
XYZ	xyz(7.2110, 5.1903, 25.8159)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C378D #8D822C

analogous

#2C688D #2C378D #522C8D

triadic

#2C378D #8D2C37 #378D2C

tetradic

#2C378D #8D2C68 #8D822C #2C8D52

square

#2C378D #8D2C68 #8D822C #2C8D52

split-complementary

#2C378D #8D522C #688D2C

monochromatic

#0F1330 #1D255E #2C378D #3B49BC #6571CF

Accessibility & contrast

On white

10.30

#2C378D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2C378D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C378D

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C378D	#FFFFFF	#000000	##FFFFFF
##2C378D	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004590

Deuteranopia (green-blind)

#003C8B

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2c378d;
/* rgb */ color: rgb(44, 55, 141);
/* oklch */ color: oklch(38.3% 0.142 272.3);

Tailwind

colors: {
  custom: {
    50: '#726daf',
    500: '#2c378d',
    950: '#000000',
  },
}

SCSS

$custom: #2c378d;
$custom-light: #726daf;
$custom-dark: #000000;

JSON

{
  "hex": "#2c378d",
  "rgb": {
    "r": 44,
    "g": 55,
    "b": 141
  },
  "hsl": {
    "h": 233.196,
    "s": 52.432,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38292,
    "c": 0.14183,
    "h": 272.3
  },
  "luminance": 0.05191
}

Semantic roles & 50–950 ramp

primary

#2C378D

secondary

#B5AB60

accent

#CC4CDC

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2C378D

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

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