#181171#181171

#181171 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.8% C 0.153 H 273.3°. Best body text is #FFFFFF at 15.47:1 contrast (WCAG AA passes).

Color values

HEX	#181171
RGB	rgb(24, 17, 113)
HSL	hsl(244, 74%, 25%)
HSV	hsv(244, 85%, 44%)
CMYK	cmyk(78.8%, 85%, 0%, 55.7%)
CIE-LAB	lab(14.33, 36.52, -52.76)
CIE-LCH	lch(14.33, 64.17, 304.69°)
OKLab	oklab(27.76% 0.0087 -0.1526)
OKLCH	oklch(27.76% 0.153 273.3)
XYZ	xyz(3.5568, 1.7870, 15.7771)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181171 #6A7111

analogous

#113A71 #181171 #481171

triadic

#181171 #711811 #117118

tetradic

#181171 #71113A #6A7111 #117148

square

#181171 #71113A #6A7111 #117148

split-complementary

#181171 #714811 #3A7111

monochromatic

#06041B #0D093C #181171 #2319A6 #2F21DB

Accessibility & contrast

On white

15.47

#181171 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#181171 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181171

15.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181171	#FFFFFF	#000000	##FFFFFF
##181171	1.00	15.47	1.36	15.47
#FFFFFF	15.47	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002974

Deuteranopia (green-blind)

#00206F

Tritanopia (blue-blind)

#002F42

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #181171;
/* rgb */ color: rgb(24, 17, 113);
/* oklch */ color: oklch(27.8% 0.153 273.3);

Tailwind

colors: {
  custom: {
    50: '#67529b',
    500: '#181171',
    950: '#000000',
  },
}

SCSS

$custom: #181171;
$custom-light: #67529b;
$custom-dark: #000000;

JSON

{
  "hex": "#181171",
  "rgb": {
    "r": 24,
    "g": 17,
    "b": 113
  },
  "hsl": {
    "h": 244.375,
    "s": 73.846,
    "l": 25.49
  },
  "oklch": {
    "l": 0.27755,
    "c": 0.15287,
    "h": 273.3
  },
  "luminance": 0.01787
}

Semantic roles & 50–950 ramp

primary

#181171

secondary

#A0A836

accent

#F137E3

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #181171

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

Preview Lab → · Contrast checker → · Palette generator →