#18177D#18177D

#18177D is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.163 H 271.3°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#18177D
RGB	rgb(24, 23, 125)
HSL	hsl(241, 69%, 29%)
HSV	hsv(241, 82%, 49%)
CMYK	cmyk(80.8%, 81.6%, 0%, 51%)
CIE-LAB	lab(16.93, 37.38, -56.17)
CIE-LCH	lch(16.93, 67.47, 303.64°)
OKLab	oklab(30% 0.0038 -0.1626)
OKLCH	oklch(30% 0.163 271.3)
XYZ	xyz(4.3835, 2.2872, 19.6085)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18177D #7C7D17

analogous

#17497D #18177D #4B177D

triadic

#18177D #7D1817 #177D18

tetradic

#18177D #7D1749 #7C7D17 #177D4B

square

#18177D #7D1749 #7C7D17 #177D4B

split-complementary

#18177D #7D4B17 #497D17

monochromatic

#05051A #0E0D49 #18177D #2221B1 #3635DA

Accessibility & contrast

On white

14.41

#18177D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#18177D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18177D

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18177D	#FFFFFF	#000000	##FFFFFF
##18177D	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F80

Deuteranopia (green-blind)

#00247B

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #18177d;
/* rgb */ color: rgb(24, 23, 125);
/* oklch */ color: oklch(30.0% 0.163 271.3);

Tailwind

colors: {
  custom: {
    50: '#6956a4',
    500: '#18177d',
    950: '#000000',
  },
}

SCSS

$custom: #18177d;
$custom-light: #6956a4;
$custom-dark: #000000;

JSON

{
  "hex": "#18177d",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 125
  },
  "hsl": {
    "h": 240.588,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30002,
    "c": 0.16266,
    "h": 271.3
  },
  "luminance": 0.02288
}

Semantic roles & 50–950 ramp

primary

#18177D

secondary

#B1B23E

accent

#EC3CEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #18177D

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

Preview Lab → · Contrast checker → · Palette generator →