#17257C#17257C

#17257C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.1% C 0.147 H 268.8°. Best body text is #FFFFFF at 13.19:1 contrast (WCAG AA passes).

Color values

HEX	#17257C
RGB	rgb(23, 37, 124)
HSL	hsl(232, 69%, 29%)
HSV	hsv(232, 81%, 49%)
CMYK	cmyk(81.5%, 70.2%, 0%, 51.4%)
CIE-LAB	lab(19.88, 28.23, -50.66)
CIE-LCH	lch(19.88, 57.99, 299.13°)
OKLab	oklab(32.07% -0.0032 -0.1467)
OKLCH	oklch(32.07% 0.147 268.8)
XYZ	xyz(4.6518, 2.9600, 19.3910)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17257C #7C6E17

analogous

#17587C #17257C #3C177C

triadic

#17257C #7C1725 #257C17

tetradic

#17257C #7C1758 #7C6E17 #177C3C

square

#17257C #7C1758 #7C6E17 #177C3C

split-complementary

#17257C #7C3C17 #587C17

monochromatic

#05081A #0D1648 #17257C #2134B0 #344BD9

Accessibility & contrast

On white

13.19

#17257C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#17257C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17257C

13.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17257C	#FFFFFF	#000000	##FFFFFF
##17257C	1.00	13.19	1.59	13.19
#FFFFFF	13.19	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002B7A

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #17257c;
/* rgb */ color: rgb(23, 37, 124);
/* oklch */ color: oklch(32.1% 0.147 268.8);

Tailwind

colors: {
  custom: {
    50: '#675fa3',
    500: '#17257c',
    950: '#000000',
  },
}

SCSS

$custom: #17257c;
$custom-light: #675fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#17257c",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 124
  },
  "hsl": {
    "h": 231.683,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.32066,
    "c": 0.14671,
    "h": 268.8
  },
  "luminance": 0.02961
}

Semantic roles & 50–950 ramp

primary

#17257C

secondary

#B1A13E

accent

#D33CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17257C

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

Preview Lab → · Contrast checker → · Palette generator →