#17358E#17358E

#17358E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.152 H 265.2°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#17358E
RGB	rgb(23, 53, 142)
HSL	hsl(225, 72%, 32%)
HSV	hsv(225, 84%, 56%)
CMYK	cmyk(83.8%, 62.7%, 0%, 44.3%)
CIE-LAB	lab(25.80, 24.35, -52.24)
CIE-LCH	lch(25.80, 57.63, 295.00°)
OKLab	oklab(36.95% -0.0128 -0.1511)
OKLCH	oklch(36.95% 0.152 265.2)
XYZ	xyz(6.5072, 4.6806, 26.1464)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17358E #8E7017

analogous

#17718E #17358E #35178E

triadic

#17358E #8E1735 #358E17

tetradic

#17358E #8E1771 #8E7017 #178E35

square

#17358E #8E1771 #8E7017 #178E35

split-complementary

#17358E #8E3517 #718E17

monochromatic

#060E25 #0E2159 #17358E #2049C3 #3F68E0

Accessibility & contrast

On white

10.85

#17358E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#17358E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17358E

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17358E	#FFFFFF	#000000	##FFFFFF
##17358E	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004391

Deuteranopia (green-blind)

#00388C

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #17358e;
/* rgb */ color: rgb(23, 53, 142);
/* oklch */ color: oklch(37.0% 0.152 265.2);

Tailwind

colors: {
  custom: {
    50: '#6b6bb0',
    500: '#17358e',
    950: '#000000',
  },
}

SCSS

$custom: #17358e;
$custom-light: #6b6bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#17358e",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 142
  },
  "hsl": {
    "h": 224.874,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36953,
    "c": 0.15168,
    "h": 265.2
  },
  "luminance": 0.04681
}

Semantic roles & 50–950 ramp

primary

#17358E

secondary

#C0A040

accent

#C139EF

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #17358E

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

Preview Lab → · Contrast checker → · Palette generator →