#17258D#17258D

#17258D is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.9% C 0.169 H 268.3°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#17258D
RGB	rgb(23, 37, 141)
HSL	hsl(233, 72%, 32%)
HSV	hsv(233, 84%, 55%)
CMYK	cmyk(83.7%, 73.8%, 0%, 44.7%)
CIE-LAB	lab(21.68, 34.67, -58.39)
CIE-LCH	lch(21.68, 67.91, 300.70°)
OKLab	oklab(33.91% -0.0049 -0.1692)
OKLCH	oklch(33.91% 0.169 268.3)
XYZ	xyz(5.8210, 3.4277, 25.5490)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17258D #8D7F17

analogous

#17608D #17258D #44178D

triadic

#17258D #8D1725 #258D17

tetradic

#17258D #8D1760 #8D7F17 #178D44

square

#17258D #8D1760 #8D7F17 #178D44

split-complementary

#17258D #8D4417 #608D17

monochromatic

#060924 #0E1758 #17258D #2033C2 #3F52E0

Accessibility & contrast

On white

12.46

#17258D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#17258D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17258D

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17258D	#FFFFFF	#000000	##FFFFFF
##17258D	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A90

Deuteranopia (green-blind)

#002E8B

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17258d;
/* rgb */ color: rgb(23, 37, 141);
/* oklch */ color: oklch(33.9% 0.169 268.3);

Tailwind

colors: {
  custom: {
    50: '#6c60af',
    500: '#17258d',
    950: '#000000',
  },
}

SCSS

$custom: #17258d;
$custom-light: #6c60af;
$custom-dark: #000000;

JSON

{
  "hex": "#17258d",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 141
  },
  "hsl": {
    "h": 232.881,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33905,
    "c": 0.16928,
    "h": 268.3
  },
  "luminance": 0.03428
}

Semantic roles & 50–950 ramp

primary

#17258D

secondary

#C0B140

accent

#D939EF

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #17258D

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

Preview Lab → · Contrast checker → · Palette generator →