#17358D#17358D

#17358D is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.9% C 0.150 H 265.1°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#17358D
RGB	rgb(23, 53, 141)
HSL	hsl(225, 72%, 32%)
HSV	hsv(225, 84%, 55%)
CMYK	cmyk(83.7%, 62.4%, 0%, 44.7%)
CIE-LAB	lab(25.72, 23.95, -51.76)
CIE-LCH	lch(25.72, 57.03, 294.83°)
OKLab	oklab(36.86% -0.0128 -0.1498)
OKLCH	oklch(36.86% 0.15 265.1)
XYZ	xyz(6.4325, 4.6507, 25.7528)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17358D #8D6F17

analogous

#17708D #17358D #34178D

triadic

#17358D #8D1735 #358D17

tetradic

#17358D #8D1770 #8D6F17 #178D34

square

#17358D #8D1770 #8D6F17 #178D34

split-complementary

#17358D #8D3417 #708D17

monochromatic

#060D24 #0E2158 #17358D #2049C2 #3F68E0

Accessibility & contrast

On white

10.88

#17358D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#17358D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17358D

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17358D	#FFFFFF	#000000	##FFFFFF
##17358D	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004390

Deuteranopia (green-blind)

#00388B

Tritanopia (blue-blind)

#004C5B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #17358d;
/* rgb */ color: rgb(23, 53, 141);
/* oklch */ color: oklch(36.9% 0.150 265.1);

Tailwind

colors: {
  custom: {
    50: '#6b6baf',
    500: '#17358d',
    950: '#000000',
  },
}

SCSS

$custom: #17358d;
$custom-light: #6b6baf;
$custom-dark: #000000;

JSON

{
  "hex": "#17358d",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 141
  },
  "hsl": {
    "h": 224.746,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.36859,
    "c": 0.15031,
    "h": 265.1
  },
  "luminance": 0.04651
}

Semantic roles & 50–950 ramp

primary

#17358D

secondary

#C09F40

accent

#C139EF

background

#F6F6FA

surface

#ECEBF5

border

#C7C6CF

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #17358D

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

Preview Lab → · Contrast checker → · Palette generator →