#2B3563#2B3563

#2B3563 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.5% C 0.081 H 272.3°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#2B3563
RGB	rgb(43, 53, 99)
HSL	hsl(229, 39%, 28%)
HSV	hsv(229, 57%, 39%)
CMYK	cmyk(56.6%, 46.5%, 0%, 61.2%)
CIE-LAB	lab(23.54, 10.73, -28.58)
CIE-LCH	lch(23.54, 30.53, 290.58°)
OKLab	oklab(34.48% 0.0032 -0.0812)
OKLCH	oklch(34.48% 0.081 272.3)
XYZ	xyz(4.5208, 3.9603, 12.3282)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3563 #63592B

analogous

#2B5163 #2B3563 #3D2B63

triadic

#2B3563 #632B35 #35632B

tetradic

#2B3563 #632B51 #63592B #2B633D

square

#2B3563 #632B51 #63592B #2B633D

split-complementary

#2B3563 #633D2B #51632B

monochromatic

#090B15 #181E38 #2B3563 #3E4C8E #5465B5

Accessibility & contrast

On white

11.72

#2B3563 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2B3563 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3563

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3563	#FFFFFF	#000000	##FFFFFF
##2B3563	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213B65

Deuteranopia (green-blind)

#1B3662

Tritanopia (blue-blind)

#103F47

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b3563;
/* rgb */ color: rgb(43, 53, 99);
/* oklch */ color: oklch(34.5% 0.081 272.3);

Tailwind

colors: {
  custom: {
    50: '#696c90',
    500: '#2b3563',
    950: '#000000',
  },
}

SCSS

$custom: #2b3563;
$custom-light: #696c90;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3563",
  "rgb": {
    "r": 43,
    "g": 53,
    "b": 99
  },
  "hsl": {
    "h": 229.286,
    "s": 39.437,
    "l": 27.843
  },
  "oklch": {
    "l": 0.34482,
    "c": 0.08126,
    "h": 272.3
  },
  "luminance": 0.03961
}

Semantic roles & 50–950 ramp

primary

#2B3563

secondary

#958A55

accent

#BA58CF

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060C

muted

#7A7A7D

Preview Lab

Preview with #2B3563

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

Preview Lab → · Contrast checker → · Palette generator →