#17317E#17317E

#17317E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.6% C 0.134 H 265.5°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#17317E
RGB	rgb(23, 49, 126)
HSL	hsl(225, 69%, 29%)
HSV	hsv(225, 82%, 49%)
CMYK	cmyk(81.7%, 61.1%, 0%, 50.6%)
CIE-LAB	lab(23.29, 20.67, -46.35)
CIE-LCH	lch(23.29, 50.75, 294.04°)
OKLab	oklab(34.64% -0.0106 -0.1339)
OKLCH	oklch(34.64% 0.134 265.5)
XYZ	xyz(5.2162, 3.8845, 20.2095)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17317E #7E6417

analogous

#17657E #17317E #30177E

triadic

#17317E #7E1731 #317E17

tetradic

#17317E #7E1765 #7E6417 #177E30

square

#17317E #7E1765 #7E6417 #177E30

split-complementary

#17317E #7E3017 #657E17

monochromatic

#050A1A #0E1D4A #17317E #2045B2 #355FDA

Accessibility & contrast

On white

11.82

#17317E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#17317E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17317E

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17317E	#FFFFFF	#000000	##FFFFFF
##17317E	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C81

Deuteranopia (green-blind)

#00337D

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #17317e;
/* rgb */ color: rgb(23, 49, 126);
/* oklch */ color: oklch(34.6% 0.134 265.5);

Tailwind

colors: {
  custom: {
    50: '#6768a4',
    500: '#17317e',
    950: '#000000',
  },
}

SCSS

$custom: #17317e;
$custom-light: #6768a4;
$custom-dark: #000000;

JSON

{
  "hex": "#17317e",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 126
  },
  "hsl": {
    "h": 224.854,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34636,
    "c": 0.13436,
    "h": 265.5
  },
  "luminance": 0.03885
}

Semantic roles & 50–950 ramp

primary

#17317E

secondary

#B3953E

accent

#BF3CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17317E

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

Preview Lab → · Contrast checker → · Palette generator →