#17315C#17315C

#17315C is a dark, moderate blue. Relative luminance 0.032; OKLCH L 31.8% C 0.083 H 259.9°. Best body text is #FFFFFF at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#17315C
RGB	rgb(23, 49, 92)
HSL	hsl(217, 60%, 23%)
HSV	hsv(217, 75%, 36%)
CMYK	cmyk(75%, 46.7%, 0%, 63.9%)
CIE-LAB	lab(20.64, 6.54, -28.70)
CIE-LCH	lch(20.64, 29.43, 282.84°)
OKLab	oklab(31.79% -0.0146 -0.082)
OKLCH	oklch(31.79% 0.083 259.9)
XYZ	xyz(3.3827, 3.1511, 10.5531)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17315C #5C4217

analogous

#17545C #17315C #1F175C

triadic

#17315C #5C1731 #315C17

tetradic

#17315C #5C1754 #5C4217 #175C1F

square

#17315C #5C1754 #5C4217 #175C1F

split-complementary

#17315C #5C1F17 #545C17

monochromatic

#060D18 #0B172B #17315C #234B8D #2F65BE

Accessibility & contrast

On white

12.88

#17315C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#17315C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17315C

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17315C	#FFFFFF	#000000	##FFFFFF
##17315C	1.00	12.88	1.63	12.88
#FFFFFF	12.88	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C355E

Deuteranopia (green-blind)

#102F5B

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #17315c;
/* rgb */ color: rgb(23, 49, 92);
/* oklch */ color: oklch(31.8% 0.083 259.9);

Tailwind

colors: {
  custom: {
    50: '#5e688a',
    500: '#17315c',
    950: '#000000',
  },
}

SCSS

$custom: #17315c;
$custom-light: #5e688a;
$custom-dark: #000000;

JSON

{
  "hex": "#17315c",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 92
  },
  "hsl": {
    "h": 217.391,
    "s": 60,
    "l": 22.549
  },
  "oklch": {
    "l": 0.31787,
    "c": 0.08333,
    "h": 259.9
  },
  "luminance": 0.03151
}

Semantic roles & 50–950 ramp

primary

#17315C

secondary

#93723C

accent

#A745E3

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #17315C

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

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