#17256A#17256A

#17256A is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.2% C 0.121 H 268.9°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#17256A
RGB	rgb(23, 37, 106)
HSL	hsl(230, 64%, 25%)
HSV	hsv(230, 78%, 42%)
CMYK	cmyk(78.3%, 65.1%, 0%, 58.4%)
CIE-LAB	lab(18.12, 21.07, -41.95)
CIE-LCH	lch(18.12, 46.95, 296.67°)
OKLab	oklab(30.24% -0.0022 -0.1212)
OKLCH	oklch(30.24% 0.121 268.9)
XYZ	xyz(3.6155, 2.5455, 13.9337)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17256A #6A5C17

analogous

#174E6A #17256A #33176A

triadic

#17256A #6A1725 #256A17

tetradic

#17256A #6A174E #6A5C17 #176A33

square

#17256A #6A174E #6A5C17 #176A33

split-complementary

#17256A #6A3317 #4E6A17

monochromatic

#050919 #0C1338 #17256A #22379C #2D48CF

Accessibility & contrast

On white

13.91

#17256A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#17256A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17256A

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17256A	#FFFFFF	#000000	##FFFFFF
##17256A	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00306C

Deuteranopia (green-blind)

#002869

Tritanopia (blue-blind)

#003743

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #17256a;
/* rgb */ color: rgb(23, 37, 106);
/* oklch */ color: oklch(30.2% 0.121 268.9);

Tailwind

colors: {
  custom: {
    50: '#625f95',
    500: '#17256a',
    950: '#000000',
  },
}

SCSS

$custom: #17256a;
$custom-light: #625f95;
$custom-dark: #000000;

JSON

{
  "hex": "#17256a",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 106
  },
  "hsl": {
    "h": 229.88,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.30236,
    "c": 0.12123,
    "h": 268.9
  },
  "luminance": 0.02546
}

Semantic roles & 50–950 ramp

primary

#17256A

secondary

#A08F3D

accent

#CB40E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #17256A

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

Preview Lab → · Contrast checker → · Palette generator →