#17317C#17317C

#17317C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.5% C 0.131 H 265.3°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#17317C
RGB	rgb(23, 49, 124)
HSL	hsl(225, 69%, 29%)
HSV	hsv(225, 81%, 49%)
CMYK	cmyk(81.5%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(23.11, 19.86, -45.37)
CIE-LCH	lch(23.11, 49.52, 293.64°)
OKLab	oklab(34.45% -0.0107 -0.1311)
OKLCH	oklch(34.45% 0.131 265.3)
XYZ	xyz(5.0885, 3.8334, 19.5366)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17317C #7C6217

analogous

#17647C #17317C #30177C

triadic

#17317C #7C1731 #317C17

tetradic

#17317C #7C1764 #7C6217 #177C30

square

#17317C #7C1764 #7C6217 #177C30

split-complementary

#17317C #7C3017 #647C17

monochromatic

#050A1A #0D1D48 #17317C #2145B0 #345FD9

Accessibility & contrast

On white

11.89

#17317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#17317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17317C

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17317C	#FFFFFF	#000000	##FFFFFF
##17317C	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7F

Deuteranopia (green-blind)

#00337B

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #17317c;
/* rgb */ color: rgb(23, 49, 124);
/* oklch */ color: oklch(34.5% 0.131 265.3);

Tailwind

colors: {
  custom: {
    50: '#6668a3',
    500: '#17317c',
    950: '#000000',
  },
}

SCSS

$custom: #17317c;
$custom-light: #6668a3;
$custom-dark: #000000;

JSON

{
  "hex": "#17317c",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 224.554,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.34452,
    "c": 0.13149,
    "h": 265.3
  },
  "luminance": 0.03834
}

Semantic roles & 50–950 ramp

primary

#17317C

secondary

#B1933E

accent

#BE3CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17317C

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

Preview Lab → · Contrast checker → · Palette generator →