#17315D#17315D

#17315D is a dark, moderate blue. Relative luminance 0.032; OKLCH L 31.9% C 0.085 H 260.2°. Best body text is #FFFFFF at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#17315D
RGB	rgb(23, 49, 93)
HSL	hsl(218, 60%, 23%)
HSV	hsv(218, 75%, 36%)
CMYK	cmyk(75.3%, 47.3%, 0%, 63.5%)
CIE-LAB	lab(20.71, 6.96, -29.25)
CIE-LCH	lch(20.71, 30.06, 283.38°)
OKLab	oklab(31.86% -0.0144 -0.0836)
OKLCH	oklch(31.86% 0.085 260.2)
XYZ	xyz(3.4267, 3.1687, 10.7848)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17315D #5D4317

analogous

#17545D #17315D #20175D

triadic

#17315D #5D1731 #315D17

tetradic

#17315D #5D1754 #5D4317 #175D20

square

#17315D #5D1754 #5D4317 #175D20

split-complementary

#17315D #5D2017 #545D17

monochromatic

#060D19 #0B172C #17315D #234B8E #2F65BF

Accessibility & contrast

On white

12.85

#17315D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#17315D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17315D

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17315D	#FFFFFF	#000000	##FFFFFF
##17315D	1.00	12.85	1.63	12.85
#FFFFFF	12.85	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B355F

Deuteranopia (green-blind)

#0F2F5C

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #17315d;
/* rgb */ color: rgb(23, 49, 93);
/* oklch */ color: oklch(31.9% 0.085 260.2);

Tailwind

colors: {
  custom: {
    50: '#5e688b',
    500: '#17315d',
    950: '#000000',
  },
}

SCSS

$custom: #17315d;
$custom-light: #5e688b;
$custom-dark: #000000;

JSON

{
  "hex": "#17315d",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 93
  },
  "hsl": {
    "h": 217.714,
    "s": 60.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.31861,
    "c": 0.08488,
    "h": 260.2
  },
  "luminance": 0.03169
}

Semantic roles & 50–950 ramp

primary

#17315D

secondary

#94733C

accent

#A844E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #17315D

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

Preview Lab → · Contrast checker → · Palette generator →