#2B237C#2B237C

#2B237C is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.0% C 0.144 H 279.0°. Best body text is #FFFFFF at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#2B237C
RGB	rgb(43, 35, 124)
HSL	hsl(245, 56%, 31%)
HSV	hsv(245, 72%, 49%)
CMYK	cmyk(65.3%, 71.8%, 0%, 51.4%)
CIE-LAB	lab(20.71, 31.98, -49.24)
CIE-LCH	lch(20.71, 58.71, 303.00°)
OKLab	oklab(33.01% 0.0226 -0.142)
OKLCH	oklch(33.01% 0.144 279)
XYZ	xyz(5.2342, 3.1705, 19.4010)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B237C #747C23

analogous

#23477C #2B237C #57237C

triadic

#2B237C #7C2B23 #237C2B

tetradic

#2B237C #7C2347 #747C23 #237C57

square

#2B237C #7C2347 #747C23 #237C57

split-complementary

#2B237C #7C5723 #477C23

monochromatic

#0A081D #1A164C #2B237C #3C30AC #584DCD

Accessibility & contrast

On white

12.85

#2B237C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#2B237C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B237C

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B237C	#FFFFFF	#000000	##FFFFFF
##2B237C	1.00	12.85	1.63	12.85
#FFFFFF	12.85	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002E7A

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b237c;
/* rgb */ color: rgb(43, 35, 124);
/* oklch */ color: oklch(33.0% 0.144 279.0);

Tailwind

colors: {
  custom: {
    50: '#6f5fa3',
    500: '#2b237c',
    950: '#000000',
  },
}

SCSS

$custom: #2b237c;
$custom-light: #6f5fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b237c",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 124
  },
  "hsl": {
    "h": 245.393,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33012,
    "c": 0.14382,
    "h": 279
  },
  "luminance": 0.03171
}

Semantic roles & 50–950 ramp

primary

#2B237C

secondary

#A6AF4C

accent

#DF49D2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #2B237C

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

Preview Lab → · Contrast checker → · Palette generator →