#18177B#18177B

#18177B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.8% C 0.160 H 271.5°. Best body text is #FFFFFF at 14.51:1 contrast (WCAG AA passes).

Color values

HEX	#18177B
RGB	rgb(24, 23, 123)
HSL	hsl(241, 68%, 29%)
HSV	hsv(241, 81%, 48%)
CMYK	cmyk(80.5%, 81.3%, 0%, 51.8%)
CIE-LAB	lab(16.68, 36.69, -55.30)
CIE-LCH	lch(16.68, 66.36, 303.56°)
OKLab	oklab(29.76% 0.0042 -0.1601)
OKLCH	oklch(29.76% 0.16 271.5)
XYZ	xyz(4.2570, 2.2366, 18.9424)
Luminance	0.0224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18177B #7A7B17

analogous

#17487B #18177B #4A177B

triadic

#18177B #7B1817 #177B18

tetradic

#18177B #7B1748 #7A7B17 #177B4A

square

#18177B #7B1748 #7A7B17 #177B4A

split-complementary

#18177B #7B4A17 #487B17

monochromatic

#05051A #0E0D47 #18177B #2221AF #3533D9

Accessibility & contrast

On white

14.51

#18177B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#18177B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18177B

14.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18177B	#FFFFFF	#000000	##FFFFFF
##18177B	1.00	14.51	1.45	14.51
#FFFFFF	14.51	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7E

Deuteranopia (green-blind)

#002479

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #18177b;
/* rgb */ color: rgb(24, 23, 123);
/* oklch */ color: oklch(29.8% 0.160 271.5);

Tailwind

colors: {
  custom: {
    50: '#6956a2',
    500: '#18177b',
    950: '#000000',
  },
}

SCSS

$custom: #18177b;
$custom-light: #6956a2;
$custom-dark: #000000;

JSON

{
  "hex": "#18177b",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 123
  },
  "hsl": {
    "h": 240.6,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.2976,
    "c": 0.16015,
    "h": 271.5
  },
  "luminance": 0.02237
}

Semantic roles & 50–950 ramp

primary

#18177B

secondary

#AFB03E

accent

#EB3CEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #18177B

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

Preview Lab → · Contrast checker → · Palette generator →