#17256D#17256D

#17256D is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.5% C 0.126 H 268.9°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#17256D
RGB	rgb(23, 37, 109)
HSL	hsl(230, 65%, 26%)
HSV	hsv(230, 79%, 43%)
CMYK	cmyk(78.9%, 66.1%, 0%, 57.3%)
CIE-LAB	lab(18.40, 22.29, -43.44)
CIE-LCH	lch(18.40, 48.83, 297.16°)
OKLab	oklab(30.53% -0.0023 -0.1256)
OKLCH	oklch(30.53% 0.126 268.9)
XYZ	xyz(3.7743, 2.6090, 14.7697)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17256D #6D5F17

analogous

#17506D #17256D #34176D

triadic

#17256D #6D1725 #256D17

tetradic

#17256D #6D1750 #6D5F17 #176D34

square

#17256D #6D1750 #6D5F17 #176D34

split-complementary

#17256D #6D3417 #506D17

monochromatic

#050919 #0C143A #17256D #2236A0 #2C47D2

Accessibility & contrast

On white

13.80

#17256D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#17256D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17256D

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17256D	#FFFFFF	#000000	##FFFFFF
##17256D	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00316F

Deuteranopia (green-blind)

#00296C

Tritanopia (blue-blind)

#003845

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #17256d;
/* rgb */ color: rgb(23, 37, 109);
/* oklch */ color: oklch(30.5% 0.126 268.9);

Tailwind

colors: {
  custom: {
    50: '#635f98',
    500: '#17256d',
    950: '#000000',
  },
}

SCSS

$custom: #17256d;
$custom-light: #635f98;
$custom-dark: #000000;

JSON

{
  "hex": "#17256d",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 109
  },
  "hsl": {
    "h": 230.233,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.30531,
    "c": 0.1256,
    "h": 268.9
  },
  "luminance": 0.02609
}

Semantic roles & 50–950 ramp

primary

#17256D

secondary

#A3923D

accent

#CD40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #17256D

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

Preview Lab → · Contrast checker → · Palette generator →