#17243C#17243C

#17243C is a dark, muted blue. Relative luminance 0.018; OKLCH L 26.2% C 0.049 H 261.9°. Best body text is #FFFFFF at 15.51:1 contrast (WCAG AA passes).

Color values

HEX	#17243C
RGB	rgb(23, 36, 60)
HSL	hsl(219, 45%, 16%)
HSV	hsv(219, 62%, 24%)
CMYK	cmyk(61.7%, 40%, 0%, 76.5%)
CIE-LAB	lab(14.23, 2.96, -17.13)
CIE-LCH	lch(14.23, 17.39, 279.80°)
OKLab	oklab(26.15% -0.0069 -0.0484)
OKLCH	oklch(26.15% 0.049 261.9)
XYZ	xyz(1.7996, 1.7700, 4.5209)
Luminance	0.0177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17243C #3C2F17

analogous

#17373C #17243C #1D173C

triadic

#17243C #3C1724 #243C17

tetradic

#17243C #3C1737 #3C2F17 #173C1D

square

#17243C #3C1737 #3C2F17 #173C1D

split-complementary

#17243C #3C1D17 #373C17

monochromatic

#080D16 #080D16 #17243C #283F68 #395994

Accessibility & contrast

On white

15.51

#17243C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#17243C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17243C

15.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17243C	#FFFFFF	#000000	##FFFFFF
##17243C	1.00	15.51	1.35	15.51
#FFFFFF	15.51	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A263D

Deuteranopia (green-blind)

#16233B

Tritanopia (blue-blind)

#04292D

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #17243c;
/* rgb */ color: rgb(23, 36, 60);
/* oklch */ color: oklch(26.2% 0.049 261.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#17243c",
  "rgb": {
    "r": 23,
    "g": 36,
    "b": 60
  },
  "hsl": {
    "h": 218.919,
    "s": 44.578,
    "l": 16.275
  },
  "oklch": {
    "l": 0.26151,
    "c": 0.04884,
    "h": 261.9
  },
  "luminance": 0.0177
}

Semantic roles & 50–950 ramp

primary

#17243C

secondary

#73603C

accent

#A754D4

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #17243C

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

Preview Lab → · Contrast checker → · Palette generator →