#17317D#17317D

#17317D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.5% C 0.133 H 265.4°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#17317D
RGB	rgb(23, 49, 125)
HSL	hsl(225, 69%, 29%)
HSV	hsv(225, 82%, 49%)
CMYK	cmyk(81.6%, 60.8%, 0%, 51%)
CIE-LAB	lab(23.20, 20.26, -45.86)
CIE-LCH	lch(23.20, 50.14, 293.84°)
OKLab	oklab(34.54% -0.0106 -0.1325)
OKLCH	oklch(34.54% 0.133 265.4)
XYZ	xyz(5.1520, 3.8589, 19.8714)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17317D #7D6317

analogous

#17647D #17317D #30177D

triadic

#17317D #7D1731 #317D17

tetradic

#17317D #7D1764 #7D6317 #177D30

square

#17317D #7D1764 #7D6317 #177D30

split-complementary

#17317D #7D3017 #647D17

monochromatic

#050A1A #0D1D49 #17317D #2145B1 #355FDA

Accessibility & contrast

On white

11.85

#17317D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#17317D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17317D

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17317D	#FFFFFF	#000000	##FFFFFF
##17317D	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C80

Deuteranopia (green-blind)

#00337C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #17317d;
/* rgb */ color: rgb(23, 49, 125);
/* oklch */ color: oklch(34.5% 0.133 265.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#17317d",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 125
  },
  "hsl": {
    "h": 224.706,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.34544,
    "c": 0.13294,
    "h": 265.4
  },
  "luminance": 0.03859
}

Semantic roles & 50–950 ramp

primary

#17317D

secondary

#B2943E

accent

#BF3CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17317D

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

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