#2C378F#2C378F

#2C378F is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.145 H 272.2°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#2C378F
RGB	rgb(44, 55, 143)
HSL	hsl(233, 53%, 37%)
HSV	hsv(233, 69%, 56%)
CMYK	cmyk(69.2%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(27.44, 25.90, -50.15)
CIE-LCH	lch(27.44, 56.44, 297.32°)
OKLab	oklab(38.47% 0.0056 -0.1446)
OKLCH	oklch(38.47% 0.145 272.2)
XYZ	xyz(7.3612, 5.2503, 26.6068)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C378F #8F842C

analogous

#2C698F #2C378F #532C8F

triadic

#2C378F #8F2C37 #378F2C

tetradic

#2C378F #8F2C69 #8F842C #2C8F53

square

#2C378F #8F2C69 #8F842C #2C8F53

split-complementary

#2C378F #8F532C #698F2C

monochromatic

#0F1331 #1E2560 #2C378F #3A49BE #6671D0

Accessibility & contrast

On white

10.24

#2C378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2C378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C378F

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C378F	#FFFFFF	#000000	##FFFFFF
##2C378F	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004592

Deuteranopia (green-blind)

#003C8D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2c378f;
/* rgb */ color: rgb(44, 55, 143);
/* oklch */ color: oklch(38.5% 0.145 272.2);

Tailwind

colors: {
  custom: {
    50: '#726db1',
    500: '#2c378f',
    950: '#000000',
  },
}

SCSS

$custom: #2c378f;
$custom-light: #726db1;
$custom-dark: #000000;

JSON

{
  "hex": "#2c378f",
  "rgb": {
    "r": 44,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 233.333,
    "s": 52.941,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38467,
    "c": 0.14466,
    "h": 272.2
  },
  "luminance": 0.05251
}

Semantic roles & 50–950 ramp

primary

#2C378F

secondary

#B6AD61

accent

#CC4BDC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2C378F

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

Preview Lab → · Contrast checker → · Palette generator →