#17478C#17478C

#17478C is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.7% C 0.126 H 258.3°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#17478C
RGB	rgb(23, 71, 140)
HSL	hsl(215, 72%, 32%)
HSV	hsv(215, 84%, 55%)
CMYK	cmyk(83.6%, 49.3%, 0%, 45.1%)
CIE-LAB	lab(30.83, 11.04, -42.84)
CIE-LCH	lch(30.83, 44.24, 284.45°)
OKLab	oklab(40.71% -0.0256 -0.1232)
OKLCH	oklch(40.71% 0.126 258.3)
XYZ	xyz(7.3385, 6.5812, 25.6894)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17478C #8C5C17

analogous

#17828C #17478C #22178C

triadic

#17478C #8C1747 #478C17

tetradic

#17478C #8C1782 #8C5C17 #178C22

square

#17478C #8C1782 #8C5C17 #178C22

split-complementary

#17478C #8C2217 #828C17

monochromatic

#061223 #0E2C57 #17478C #2062C1 #3E80DF

Accessibility & contrast

On white

9.07

#17478C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#17478C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17478C

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17478C	#FFFFFF	#000000	##FFFFFF
##17478C	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4E8F

Deuteranopia (green-blind)

#00448B

Tritanopia (blue-blind)

#005862

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #17478c;
/* rgb */ color: rgb(23, 71, 140);
/* oklch */ color: oklch(40.7% 0.126 258.3);

Tailwind

colors: {
  custom: {
    50: '#6979ae',
    500: '#17478c',
    950: '#000000',
  },
}

SCSS

$custom: #17478c;
$custom-light: #6979ae;
$custom-dark: #000000;

JSON

{
  "hex": "#17478c",
  "rgb": {
    "r": 23,
    "g": 71,
    "b": 140
  },
  "hsl": {
    "h": 215.385,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.40712,
    "c": 0.1258,
    "h": 258.3
  },
  "luminance": 0.06582
}

Semantic roles & 50–950 ramp

primary

#17478C

secondary

#BF8B3F

accent

#A439EF

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #17478C

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

Preview Lab → · Contrast checker → · Palette generator →