#17233C#17233C

#17233C is a dark, muted blue. Relative luminance 0.017; OKLCH L 25.9% C 0.050 H 263.8°. Best body text is #FFFFFF at 15.65:1 contrast (WCAG AA passes).

Color values

HEX	#17233C
RGB	rgb(23, 35, 60)
HSL	hsl(221, 45%, 16%)
HSV	hsv(221, 62%, 24%)
CMYK	cmyk(61.7%, 41.7%, 0%, 76.5%)
CIE-LAB	lab(13.89, 3.70, -17.68)
CIE-LCH	lch(13.89, 18.06, 281.82°)
OKLab	oklab(25.88% -0.0054 -0.0499)
OKLCH	oklch(25.88% 0.05 263.8)
XYZ	xyz(1.7697, 1.7103, 4.5110)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17233C #3C3017

analogous

#17363C #17233C #1E173C

triadic

#17233C #3C1723 #233C17

tetradic

#17233C #3C1736 #3C3017 #173C1E

square

#17233C #3C1736 #3C3017 #173C1E

split-complementary

#17233C #3C1E17 #363C17

monochromatic

#080D16 #080D16 #17233C #283D68 #395794

Accessibility & contrast

On white

15.65

#17233C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#17233C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17233C

15.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17233C	#FFFFFF	#000000	##FFFFFF
##17233C	1.00	15.65	1.34	15.65
#FFFFFF	15.65	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19253D

Deuteranopia (green-blind)

#15223B

Tritanopia (blue-blind)

#05282C

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #17233c;
/* rgb */ color: rgb(23, 35, 60);
/* oklch */ color: oklch(25.9% 0.050 263.8);

Tailwind

colors: {
  custom: {
    50: '#575d72',
    500: '#17233c',
    950: '#000000',
  },
}

SCSS

$custom: #17233c;
$custom-light: #575d72;
$custom-dark: #000000;

JSON

{
  "hex": "#17233c",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 60
  },
  "hsl": {
    "h": 220.541,
    "s": 44.578,
    "l": 16.275
  },
  "oklch": {
    "l": 0.25884,
    "c": 0.05023,
    "h": 263.8
  },
  "luminance": 0.0171
}

Semantic roles & 50–950 ramp

primary

#17233C

secondary

#73613C

accent

#AB54D4

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #17233C

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

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