#2B237B#2B237B

#2B237B is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.9% C 0.142 H 279.2°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#2B237B
RGB	rgb(43, 35, 123)
HSL	hsl(245, 56%, 31%)
HSV	hsv(245, 72%, 48%)
CMYK	cmyk(65%, 71.5%, 0%, 51.8%)
CIE-LAB	lab(20.62, 31.63, -48.77)
CIE-LCH	lch(20.62, 58.13, 302.97°)
OKLab	oklab(32.91% 0.0228 -0.1406)
OKLCH	oklch(32.91% 0.142 279.2)
XYZ	xyz(5.1713, 3.1453, 19.0696)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B237B #737B23

analogous

#23477B #2B237B #57237B

triadic

#2B237B #7B2B23 #237B2B

tetradic

#2B237B #7B2347 #737B23 #237B57

square

#2B237B #7B2347 #737B23 #237B57

split-complementary

#2B237B #7B5723 #477B23

monochromatic

#0A081C #1A154B #2B237B #3C31AB #584CCC

Accessibility & contrast

On white

12.89

#2B237B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#2B237B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B237B

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B237B	#FFFFFF	#000000	##FFFFFF
##2B237B	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357E

Deuteranopia (green-blind)

#002E79

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b237b;
/* rgb */ color: rgb(43, 35, 123);
/* oklch */ color: oklch(32.9% 0.142 279.2);

Tailwind

colors: {
  custom: {
    50: '#6f5fa2',
    500: '#2b237b',
    950: '#000000',
  },
}

SCSS

$custom: #2b237b;
$custom-light: #6f5fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b237b",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 123
  },
  "hsl": {
    "h": 245.455,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.32913,
    "c": 0.14246,
    "h": 279.2
  },
  "luminance": 0.03146
}

Semantic roles & 50–950 ramp

primary

#2B237B

secondary

#A5AE4C

accent

#DF49D1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #2B237B

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

Preview Lab → · Contrast checker → · Palette generator →