#23355B#23355B

#23355B is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.4% C 0.071 H 263.8°. Best body text is #FFFFFF at 12.13:1 contrast (WCAG AA passes).

Color values

HEX	#23355B
RGB	rgb(35, 53, 91)
HSL	hsl(221, 44%, 25%)
HSV	hsv(221, 62%, 36%)
CMYK	cmyk(61.5%, 41.8%, 0%, 64.3%)
CIE-LAB	lab(22.51, 5.79, -25.02)
CIE-LCH	lch(22.51, 25.68, 283.02°)
OKLab	oklab(33.39% -0.0077 -0.071)
OKLCH	oklch(33.39% 0.071 263.8)
XYZ	xyz(3.8539, 3.6586, 10.3986)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23355B #5B4923

analogous

#23515B #23355B #2D235B

triadic

#23355B #5B2335 #355B23

tetradic

#23355B #5B2351 #5B4923 #235B2D

square

#23355B #5B2351 #5B4923 #235B2D

split-complementary

#23355B #5B2D23 #515B23

monochromatic

#090D16 #121B2F #23355B #344F87 #4568B3

Accessibility & contrast

On white

12.13

#23355B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#23355B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23355B

12.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23355B	#FFFFFF	#000000	##FFFFFF
##23355B	1.00	12.13	1.73	12.13
#FFFFFF	12.13	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25395D

Deuteranopia (green-blind)

#1E335A

Tritanopia (blue-blind)

#003D43

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #23355b;
/* rgb */ color: rgb(35, 53, 91);
/* oklch */ color: oklch(33.4% 0.071 263.8);

Tailwind

colors: {
  custom: {
    50: '#636b89',
    500: '#23355b',
    950: '#000000',
  },
}

SCSS

$custom: #23355b;
$custom-light: #636b89;
$custom-dark: #000000;

JSON

{
  "hex": "#23355b",
  "rgb": {
    "r": 35,
    "g": 53,
    "b": 91
  },
  "hsl": {
    "h": 220.714,
    "s": 44.444,
    "l": 24.706
  },
  "oklch": {
    "l": 0.33387,
    "c": 0.07138,
    "h": 263.8
  },
  "luminance": 0.03659
}

Semantic roles & 50–950 ramp

primary

#23355B

secondary

#8F794B

accent

#AB54D4

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060B

muted

#7A7A7C

Preview Lab

Preview with #23355B

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

Preview Lab → · Contrast checker → · Palette generator →