#17478E#17478E

#17478E is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.9% C 0.129 H 258.7°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#17478E
RGB	rgb(23, 71, 142)
HSL	hsl(216, 72%, 32%)
HSV	hsv(216, 84%, 56%)
CMYK	cmyk(83.8%, 50%, 0%, 44.3%)
CIE-LAB	lab(30.97, 11.86, -43.84)
CIE-LCH	lch(30.97, 45.41, 285.14°)
OKLab	oklab(40.87% -0.0253 -0.1261)
OKLCH	oklch(40.87% 0.129 258.7)
XYZ	xyz(7.4873, 6.6407, 26.4731)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17478E #8E5E17

analogous

#17838E #17478E #22178E

triadic

#17478E #8E1747 #478E17

tetradic

#17478E #8E1783 #8E5E17 #178E22

square

#17478E #8E1783 #8E5E17 #178E22

split-complementary

#17478E #8E2217 #838E17

monochromatic

#061225 #0E2D59 #17478E #2061C3 #3F80E0

Accessibility & contrast

On white

9.02

#17478E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#17478E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17478E

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17478E	#FFFFFF	#000000	##FFFFFF
##17478E	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4F91

Deuteranopia (green-blind)

#00448D

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #17478e;
/* rgb */ color: rgb(23, 71, 142);
/* oklch */ color: oklch(40.9% 0.129 258.7);

Tailwind

colors: {
  custom: {
    50: '#6a79b0',
    500: '#17478e',
    950: '#000000',
  },
}

SCSS

$custom: #17478e;
$custom-light: #6a79b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17478e",
  "rgb": {
    "r": 23,
    "g": 71,
    "b": 142
  },
  "hsl": {
    "h": 215.798,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40865,
    "c": 0.12862,
    "h": 258.7
  },
  "luminance": 0.06642
}

Semantic roles & 50–950 ramp

primary

#17478E

secondary

#C08D40

accent

#A539EF

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #17478E

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

Preview Lab → · Contrast checker → · Palette generator →