#17186E#17186E

#17186E is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.143 H 272.1°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#17186E
RGB	rgb(23, 24, 110)
HSL	hsl(239, 65%, 26%)
HSV	hsv(239, 79%, 43%)
CMYK	cmyk(79.1%, 78.2%, 0%, 56.9%)
CIE-LAB	lab(15.28, 31.41, -49.23)
CIE-LCH	lch(15.28, 58.40, 302.54°)
OKLab	oklab(28.3% 0.0053 -0.1425)
OKLCH	oklch(28.3% 0.143 272.1)
XYZ	xyz(3.4935, 1.9608, 14.9432)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17186E #6E6D17

analogous

#17436E #17186E #41176E

triadic

#17186E #6E1718 #186E17

tetradic

#17186E #6E1743 #6E6D17 #176E41

square

#17186E #6E1743 #6E6D17 #176E41

split-complementary

#17186E #6E4117 #436E17

monochromatic

#050619 #0C0D3B #17186E #2223A1 #2C2ED3

Accessibility & contrast

On white

15.08

#17186E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#17186E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17186E

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17186E	#FFFFFF	#000000	##FFFFFF
##17186E	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A70

Deuteranopia (green-blind)

#00226C

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #17186e;
/* rgb */ color: rgb(23, 24, 110);
/* oklch */ color: oklch(28.3% 0.143 272.1);

Tailwind

colors: {
  custom: {
    50: '#655699',
    500: '#17186e',
    950: '#000000',
  },
}

SCSS

$custom: #17186e;
$custom-light: #655699;
$custom-dark: #000000;

JSON

{
  "hex": "#17186e",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 110
  },
  "hsl": {
    "h": 239.31,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.283,
    "c": 0.1426,
    "h": 272.1
  },
  "luminance": 0.01961
}

Semantic roles & 50–950 ramp

primary

#17186E

secondary

#A4A33D

accent

#E63FE8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #17186E

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

Preview Lab → · Contrast checker → · Palette generator →