#17203C#17203C

#17203C is a dark, muted blue. Relative luminance 0.015; OKLCH L 25.1% C 0.055 H 268.8°. Best body text is #FFFFFF at 16.05:1 contrast (WCAG AA passes).

Color values

HEX	#17203C
RGB	rgb(23, 32, 60)
HSL	hsl(225, 45%, 16%)
HSV	hsv(225, 62%, 24%)
CMYK	cmyk(61.7%, 46.7%, 0%, 76.5%)
CIE-LAB	lab(12.87, 5.95, -19.29)
CIE-LCH	lch(12.87, 20.18, 287.14°)
OKLab	oklab(25.1% -0.0011 -0.0547)
OKLCH	oklch(25.1% 0.055 268.8)
XYZ	xyz(1.6852, 1.5413, 4.4828)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17203C #3C3317

analogous

#17333C #17203C #21173C

triadic

#17203C #3C1720 #203C17

tetradic

#17203C #3C1733 #3C3317 #173C21

square

#17203C #3C1733 #3C3317 #173C21

split-complementary

#17203C #3C2117 #333C17

monochromatic

#080C16 #080C16 #17203C #283868 #394F94

Accessibility & contrast

On white

16.05

#17203C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#17203C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17203C

16.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17203C	#FFFFFF	#000000	##FFFFFF
##17203C	1.00	16.05	1.31	16.05
#FFFFFF	16.05	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15233D

Deuteranopia (green-blind)

#10203B

Tritanopia (blue-blind)

#05262B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #17203c;
/* rgb */ color: rgb(23, 32, 60);
/* oklch */ color: oklch(25.1% 0.055 268.8);

Tailwind

colors: {
  custom: {
    50: '#575b72',
    500: '#17203c',
    950: '#000000',
  },
}

SCSS

$custom: #17203c;
$custom-light: #575b72;
$custom-dark: #000000;

JSON

{
  "hex": "#17203c",
  "rgb": {
    "r": 23,
    "g": 32,
    "b": 60
  },
  "hsl": {
    "h": 225.405,
    "s": 44.578,
    "l": 16.275
  },
  "oklch": {
    "l": 0.25097,
    "c": 0.05469,
    "h": 268.8
  },
  "luminance": 0.01541
}

Semantic roles & 50–950 ramp

primary

#17203C

secondary

#73653C

accent

#B554D4

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #17203C

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

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