#23307D#23307D

#23307D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.131 H 270.7°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#23307D
RGB	rgb(35, 48, 125)
HSL	hsl(231, 56%, 31%)
HSV	hsv(231, 72%, 49%)
CMYK	cmyk(72%, 61.6%, 0%, 51%)
CIE-LAB	lab(23.51, 22.51, -45.33)
CIE-LCH	lch(23.51, 50.61, 296.41°)
OKLab	oklab(34.94% 0.0017 -0.1307)
OKLCH	oklch(34.94% 0.131 270.7)
XYZ	xyz(5.4505, 3.9514, 19.8735)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23307D #7D7023

analogous

#235D7D #23307D #43237D

triadic

#23307D #7D2330 #307D23

tetradic

#23307D #7D235D #7D7023 #237D43

square

#23307D #7D235D #7D7023 #237D43

split-complementary

#23307D #7D4323 #5D7D23

monochromatic

#080B1D #161E4D #23307D #3042AD #4D60CD

Accessibility & contrast

On white

11.73

#23307D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#23307D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23307D

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23307D	#FFFFFF	#000000	##FFFFFF
##23307D	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C80

Deuteranopia (green-blind)

#00347B

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #23307d;
/* rgb */ color: rgb(35, 48, 125);
/* oklch */ color: oklch(34.9% 0.131 270.7);

Tailwind

colors: {
  custom: {
    50: '#6b68a3',
    500: '#23307d',
    950: '#000000',
  },
}

SCSS

$custom: #23307d;
$custom-light: #6b68a3;
$custom-dark: #000000;

JSON

{
  "hex": "#23307d",
  "rgb": {
    "r": 35,
    "g": 48,
    "b": 125
  },
  "hsl": {
    "h": 231.333,
    "s": 56.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34937,
    "c": 0.13071,
    "h": 270.7
  },
  "luminance": 0.03952
}

Semantic roles & 50–950 ramp

primary

#23307D

secondary

#AFA14C

accent

#CA48E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #23307D

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

Preview Lab → · Contrast checker → · Palette generator →