#2C3FA5#2C3FA5

#2C3FA5 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.9% C 0.165 H 269.7°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#2C3FA5
RGB	rgb(44, 63, 165)
HSL	hsl(231, 58%, 41%)
HSV	hsv(231, 73%, 65%)
CMYK	cmyk(73.3%, 61.8%, 0%, 35.3%)
CIE-LAB	lab(31.36, 28.75, -57.15)
CIE-LCH	lch(31.36, 63.97, 296.71°)
OKLab	oklab(41.95% -0.001 -0.165)
OKLCH	oklch(41.95% 0.165 269.7)
XYZ	xyz(9.6054, 6.8061, 36.3975)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C3FA5 #A5922C

analogous

#2C7BA5 #2C3FA5 #562CA5

triadic

#2C3FA5 #A52C3F #3FA52C

tetradic

#2C3FA5 #A52C7B #A5922C #2CA556

square

#2C3FA5 #A52C7B #A5922C #2CA556

split-complementary

#2C3FA5 #A5562C #7BA52C

monochromatic

#121A44 #1F2D75 #2C3FA5 #4257CD #7282D9

Accessibility & contrast

On white

8.89

#2C3FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#2C3FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C3FA5

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C3FA5	#FFFFFF	#000000	##FFFFFF
##2C3FA5	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A8

Deuteranopia (green-blind)

#0044A3

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2c3fa5;
/* rgb */ color: rgb(44, 63, 165);
/* oklch */ color: oklch(41.9% 0.165 269.7);

Tailwind

colors: {
  custom: {
    50: '#7773c1',
    500: '#2c3fa5',
    950: '#000000',
  },
}

SCSS

$custom: #2c3fa5;
$custom-light: #7773c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2c3fa5",
  "rgb": {
    "r": 44,
    "g": 63,
    "b": 165
  },
  "hsl": {
    "h": 230.579,
    "s": 57.895,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41949,
    "c": 0.16501,
    "h": 269.7
  },
  "luminance": 0.06807
}

Semantic roles & 50–950 ramp

primary

#2C3FA5

secondary

#C1B36C

accent

#C947E1

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2C3FA5

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

Preview Lab → · Contrast checker → · Palette generator →