#181C8C#181C8C

#181C8C is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.177 H 269.7°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#181C8C
RGB	rgb(24, 28, 140)
HSL	hsl(238, 71%, 32%)
HSV	hsv(238, 83%, 55%)
CMYK	cmyk(82.9%, 80%, 0%, 45.1%)
CIE-LAB	lab(19.71, 39.75, -61.03)
CIE-LCH	lch(19.71, 72.83, 303.08°)
OKLab	oklab(32.48% -0.0008 -0.1768)
OKLCH	oklch(32.48% 0.177 269.7)
XYZ	xyz(5.5240, 2.9175, 25.0779)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C8C #8C8818

analogous

#18568C #181C8C #4E188C

triadic

#181C8C #8C181C #1C8C18

tetradic

#181C8C #8C1856 #8C8818 #188C4E

square

#181C8C #8C1856 #8C8818 #188C4E

split-complementary

#181C8C #8C4E18 #568C18

monochromatic

#060724 #0F1258 #181C8C #2126C0 #4046DE

Accessibility & contrast

On white

13.26

#181C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#181C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C8C

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C8C	#FFFFFF	#000000	##FFFFFF
##181C8C	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358F

Deuteranopia (green-blind)

#002A8A

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #181c8c;
/* rgb */ color: rgb(24, 28, 140);
/* oklch */ color: oklch(32.5% 0.177 269.7);

Tailwind

colors: {
  custom: {
    50: '#6d5aaf',
    500: '#181c8c',
    950: '#000000',
  },
}

SCSS

$custom: #181c8c;
$custom-light: #6d5aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#181c8c",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 140
  },
  "hsl": {
    "h": 237.931,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32484,
    "c": 0.17676,
    "h": 269.7
  },
  "luminance": 0.02918
}

Semantic roles & 50–950 ramp

primary

#181C8C

secondary

#BFBA41

accent

#E73AED

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080411

muted

#7B7980

Preview Lab

Preview with #181C8C

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

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