#17243D#17243D

#17243D is a dark, muted blue. Relative luminance 0.018; OKLCH L 26.2% C 0.051 H 262.6°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#17243D
RGB	rgb(23, 36, 61)
HSL	hsl(219, 45%, 16%)
HSV	hsv(219, 62%, 24%)
CMYK	cmyk(62.3%, 41%, 0%, 76.1%)
CIE-LAB	lab(14.29, 3.35, -17.74)
CIE-LCH	lch(14.29, 18.05, 280.70°)
OKLab	oklab(26.22% -0.0065 -0.0501)
OKLCH	oklch(26.22% 0.051 262.6)
XYZ	xyz(1.8262, 1.7807, 4.6614)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17243D #3D3017

analogous

#17373D #17243D #1D173D

triadic

#17243D #3D1724 #243D17

tetradic

#17243D #3D1737 #3D3017 #173D1D

square

#17243D #3D1737 #3D3017 #173D1D

split-complementary

#17243D #3D1D17 #373D17

monochromatic

#080D16 #080D16 #17243D #283E69 #395896

Accessibility & contrast

On white

15.48

#17243D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#17243D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17243D

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17243D	#FFFFFF	#000000	##FFFFFF
##17243D	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A263E

Deuteranopia (green-blind)

#15233C

Tritanopia (blue-blind)

#03292D

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #17243d;
/* rgb */ color: rgb(23, 36, 61);
/* oklch */ color: oklch(26.2% 0.051 262.6);

Tailwind

colors: {
  custom: {
    50: '#575e72',
    500: '#17243d',
    950: '#000000',
  },
}

SCSS

$custom: #17243d;
$custom-light: #575e72;
$custom-dark: #000000;

JSON

{
  "hex": "#17243d",
  "rgb": {
    "r": 23,
    "g": 36,
    "b": 61
  },
  "hsl": {
    "h": 219.474,
    "s": 45.238,
    "l": 16.471
  },
  "oklch": {
    "l": 0.26218,
    "c": 0.05055,
    "h": 262.6
  },
  "luminance": 0.01781
}

Semantic roles & 50–950 ramp

primary

#17243D

secondary

#74613C

accent

#A853D5

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #17243D

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

Preview Lab → · Contrast checker → · Palette generator →