#23283F#23283F

#23283F is a dark, muted blue. Relative luminance 0.022; OKLCH L 28.3% C 0.043 H 274.0°. Best body text is #FFFFFF at 14.51:1 contrast (WCAG AA passes).

Color values

HEX	#23283F
RGB	rgb(35, 40, 63)
HSL	hsl(229, 29%, 19%)
HSV	hsv(229, 44%, 25%)
CMYK	cmyk(44.4%, 36.5%, 0%, 75.3%)
CIE-LAB	lab(16.67, 4.83, -15.34)
CIE-LCH	lch(16.67, 16.08, 287.47°)
OKLab	oklab(28.34% 0.003 -0.0429)
OKLCH	oklch(28.34% 0.043 274)
XYZ	xyz(2.3489, 2.2337, 5.0090)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23283F #3F3A23

analogous

#23363F #23283F #2C233F

triadic

#23283F #3F2328 #283F23

tetradic

#23283F #3F2336 #3F3A23 #233F2C

square

#23283F #3F2336 #3F3A23 #233F2C

split-complementary

#23283F #3F2C23 #363F23

monochromatic

#0B0C14 #0D0F18 #23283F #394166 #4F5A8E

Accessibility & contrast

On white

14.51

#23283F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#23283F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23283F

14.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23283F	#FFFFFF	#000000	##FFFFFF
##23283F	1.00	14.51	1.45	14.51
#FFFFFF	14.51	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#202A40

Deuteranopia (green-blind)

#1E283E

Tritanopia (blue-blind)

#1A2D30

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #23283f;
/* rgb */ color: rgb(35, 40, 63);
/* oklch */ color: oklch(28.3% 0.043 274.0);

Tailwind

colors: {
  custom: {
    50: '#5f6174',
    500: '#23283f',
    950: '#000000',
  },
}

SCSS

$custom: #23283f;
$custom-light: #5f6174;
$custom-dark: #000000;

JSON

{
  "hex": "#23283f",
  "rgb": {
    "r": 35,
    "g": 40,
    "b": 63
  },
  "hsl": {
    "h": 229.286,
    "s": 28.571,
    "l": 19.216
  },
  "oklch": {
    "l": 0.28337,
    "c": 0.04297,
    "h": 274
  },
  "luminance": 0.02234
}

Semantic roles & 50–950 ramp

primary

#23283F

secondary

#726B4C

accent

#B363C5

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040508

muted

#79797B

Preview Lab

Preview with #23283F

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

Preview Lab → · Contrast checker → · Palette generator →