#23377D#23377D

#23377D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.121 H 267.9°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#23377D
RGB	rgb(35, 55, 125)
HSL	hsl(227, 56%, 31%)
HSV	hsv(227, 72%, 49%)
CMYK	cmyk(72%, 56%, 0%, 51%)
CIE-LAB	lab(25.47, 17.63, -42.14)
CIE-LCH	lch(25.47, 45.68, 292.71°)
OKLab	oklab(36.41% -0.0045 -0.1212)
OKLCH	oklch(36.41% 0.121 267.9)
XYZ	xyz(5.7597, 4.5698, 19.9766)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23377D #7D6923

analogous

#23647D #23377D #3C237D

triadic

#23377D #7D2337 #377D23

tetradic

#23377D #7D2364 #7D6923 #237D3C

square

#23377D #7D2364 #7D6923 #237D3C

split-complementary

#23377D #7D3C23 #647D23

monochromatic

#080D1D #16224D #23377D #304CAD #4D6ACD

Accessibility & contrast

On white

10.97

#23377D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#23377D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23377D

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23377D	#FFFFFF	#000000	##FFFFFF
##23377D	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02417F

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #23377d;
/* rgb */ color: rgb(35, 55, 125);
/* oklch */ color: oklch(36.4% 0.121 267.9);

Tailwind

colors: {
  custom: {
    50: '#6a6da3',
    500: '#23377d',
    950: '#000000',
  },
}

SCSS

$custom: #23377d;
$custom-light: #6a6da3;
$custom-dark: #000000;

JSON

{
  "hex": "#23377d",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 125
  },
  "hsl": {
    "h": 226.667,
    "s": 56.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.36406,
    "c": 0.12131,
    "h": 267.9
  },
  "luminance": 0.0457
}

Semantic roles & 50–950 ramp

primary

#23377D

secondary

#AF994C

accent

#BE48E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #23377D

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

Preview Lab → · Contrast checker → · Palette generator →