#23337B#23337B

#23337B is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.4% C 0.124 H 269.5°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#23337B
RGB	rgb(35, 51, 123)
HSL	hsl(229, 56%, 31%)
HSV	hsv(229, 72%, 48%)
CMYK	cmyk(71.5%, 58.5%, 0%, 51.8%)
CIE-LAB	lab(24.18, 19.65, -42.98)
CIE-LCH	lch(24.18, 47.26, 294.56°)
OKLab	oklab(35.38% -0.001 -0.1238)
OKLCH	oklch(35.38% 0.124 269.5)
XYZ	xyz(5.4509, 4.1545, 19.2497)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23337B #7B6B23

analogous

#235F7B #23337B #3F237B

triadic

#23337B #7B2333 #337B23

tetradic

#23337B #7B235F #7B6B23 #237B3F

square

#23337B #7B235F #7B6B23 #237B3F

split-complementary

#23337B #7B3F23 #5F7B23

monochromatic

#080B1C #151F4B #23337B #3147AB #4C64CC

Accessibility & contrast

On white

11.47

#23337B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#23337B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23337B

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23337B	#FFFFFF	#000000	##FFFFFF
##23337B	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7D

Deuteranopia (green-blind)

#00367A

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #23337b;
/* rgb */ color: rgb(35, 51, 123);
/* oklch */ color: oklch(35.4% 0.124 269.5);

Tailwind

colors: {
  custom: {
    50: '#6a6aa2',
    500: '#23337b',
    950: '#000000',
  },
}

SCSS

$custom: #23337b;
$custom-light: #6a6aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#23337b",
  "rgb": {
    "r": 35,
    "g": 51,
    "b": 123
  },
  "hsl": {
    "h": 229.091,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.35381,
    "c": 0.12376,
    "h": 269.5
  },
  "luminance": 0.04155
}

Semantic roles & 50–950 ramp

primary

#23337B

secondary

#AE9C4C

accent

#C449DF

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #23337B

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

Preview Lab → · Contrast checker → · Palette generator →