#2C3399#2C3399

#2C3399 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.6% C 0.163 H 272.9°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#2C3399
RGB	rgb(44, 51, 153)
HSL	hsl(236, 55%, 39%)
HSV	hsv(236, 71%, 60%)
CMYK	cmyk(71.2%, 66.7%, 0%, 40%)
CIE-LAB	lab(27.30, 32.20, -56.51)
CIE-LCH	lch(27.30, 65.04, 299.68°)
OKLab	oklab(38.64% 0.0082 -0.1632)
OKLCH	oklch(38.64% 0.163 272.9)
XYZ	xyz(7.9704, 5.2023, 30.7149)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C3399 #99922C

analogous

#2C6999 #2C3399 #5B2C99

triadic

#2C3399 #992C33 #33992C

tetradic

#2C3399 #992C69 #99922C #2C995B

square

#2C3399 #992C69 #99922C #2C995B

split-complementary

#2C3399 #995B2C #69992C

monochromatic

#11133A #1E2369 #2C3399 #3B44C7 #6B72D4

Accessibility & contrast

On white

10.29

#2C3399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2C3399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C3399

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C3399	#FFFFFF	#000000	##FFFFFF
##2C3399	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469C

Deuteranopia (green-blind)

#003B97

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2c3399;
/* rgb */ color: rgb(44, 51, 153);
/* oklch */ color: oklch(38.6% 0.163 272.9);

Tailwind

colors: {
  custom: {
    50: '#756bb8',
    500: '#2c3399',
    950: '#000000',
  },
}

SCSS

$custom: #2c3399;
$custom-light: #756bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2c3399",
  "rgb": {
    "r": 44,
    "g": 51,
    "b": 153
  },
  "hsl": {
    "h": 236.147,
    "s": 55.33,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38641,
    "c": 0.16344,
    "h": 272.9
  },
  "luminance": 0.05203
}

Semantic roles & 50–950 ramp

primary

#2C3399

secondary

#BBB666

accent

#D549DF

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2C3399

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

Preview Lab → · Contrast checker → · Palette generator →