#17315E#17315E

#17315E is a dark, moderate blue. Relative luminance 0.032; OKLCH L 31.9% C 0.086 H 260.6°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#17315E
RGB	rgb(23, 49, 94)
HSL	hsl(218, 61%, 23%)
HSV	hsv(218, 76%, 37%)
CMYK	cmyk(75.5%, 47.9%, 0%, 63.1%)
CIE-LAB	lab(20.78, 7.37, -29.80)
CIE-LCH	lch(20.78, 30.69, 283.90°)
OKLab	oklab(31.94% -0.0142 -0.0853)
OKLCH	oklch(31.94% 0.086 260.6)
XYZ	xyz(3.4713, 3.1866, 11.0196)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17315E #5E4417

analogous

#17545E #17315E #20175E

triadic

#17315E #5E1731 #315E17

tetradic

#17315E #5E1754 #5E4417 #175E20

square

#17315E #5E1754 #5E4417 #175E20

split-complementary

#17315E #5E2017 #545E17

monochromatic

#060D19 #0B172D #17315E #234B8F #2F64C0

Accessibility & contrast

On white

12.83

#17315E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#17315E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17315E

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17315E	#FFFFFF	#000000	##FFFFFF
##17315E	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3560

Deuteranopia (green-blind)

#0D2F5D

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #17315e;
/* rgb */ color: rgb(23, 49, 94);
/* oklch */ color: oklch(31.9% 0.086 260.6);

Tailwind

colors: {
  custom: {
    50: '#5e688c',
    500: '#17315e',
    950: '#000000',
  },
}

SCSS

$custom: #17315e;
$custom-light: #5e688c;
$custom-dark: #000000;

JSON

{
  "hex": "#17315e",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 94
  },
  "hsl": {
    "h": 218.028,
    "s": 60.684,
    "l": 22.941
  },
  "oklch": {
    "l": 0.31936,
    "c": 0.08643,
    "h": 260.6
  },
  "luminance": 0.03187
}

Semantic roles & 50–950 ramp

primary

#17315E

secondary

#95743C

accent

#A944E4

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #17315E

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

Preview Lab → · Contrast checker → · Palette generator →