#17256C#17256C

#17256C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.4% C 0.124 H 268.9°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#17256C
RGB	rgb(23, 37, 108)
HSL	hsl(230, 65%, 26%)
HSV	hsv(230, 79%, 42%)
CMYK	cmyk(78.7%, 65.7%, 0%, 57.6%)
CIE-LAB	lab(18.31, 21.88, -42.95)
CIE-LCH	lch(18.31, 48.20, 297.00°)
OKLab	oklab(30.43% -0.0023 -0.1241)
OKLCH	oklch(30.43% 0.124 268.9)
XYZ	xyz(3.7208, 2.5876, 14.4878)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17256C #6C5E17

analogous

#174F6C #17256C #34176C

triadic

#17256C #6C1725 #256C17

tetradic

#17256C #6C174F #6C5E17 #176C34

square

#17256C #6C174F #6C5E17 #176C34

split-complementary

#17256C #6C3417 #4F6C17

monochromatic

#050919 #0C143A #17256C #22369E #2C48D1

Accessibility & contrast

On white

13.84

#17256C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#17256C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17256C

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17256C	#FFFFFF	#000000	##FFFFFF
##17256C	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00316E

Deuteranopia (green-blind)

#00296B

Tritanopia (blue-blind)

#003744

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #17256c;
/* rgb */ color: rgb(23, 37, 108);
/* oklch */ color: oklch(30.4% 0.124 268.9);

Tailwind

colors: {
  custom: {
    50: '#635f97',
    500: '#17256c',
    950: '#000000',
  },
}

SCSS

$custom: #17256c;
$custom-light: #635f97;
$custom-dark: #000000;

JSON

{
  "hex": "#17256c",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 108
  },
  "hsl": {
    "h": 230.118,
    "s": 64.885,
    "l": 25.686
  },
  "oklch": {
    "l": 0.30432,
    "c": 0.12415,
    "h": 268.9
  },
  "luminance": 0.02588
}

Semantic roles & 50–950 ramp

primary

#17256C

secondary

#A2913D

accent

#CC40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #17256C

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

Preview Lab → · Contrast checker → · Palette generator →