#181C7C#181C7C

#181C7C is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.157 H 270.8°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#181C7C
RGB	rgb(24, 28, 124)
HSL	hsl(238, 68%, 29%)
HSV	hsv(238, 81%, 49%)
CMYK	cmyk(80.6%, 77.4%, 0%, 51.4%)
CIE-LAB	lab(17.83, 34.12, -54.05)
CIE-LCH	lch(17.83, 63.92, 302.27°)
OKLab	oklab(30.6% 0.0021 -0.1565)
OKLCH	oklch(30.6% 0.157 270.8)
XYZ	xyz(4.4288, 2.4794, 19.3100)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C7C #7C7818

analogous

#184E7C #181C7C #46187C

triadic

#181C7C #7C181C #1C7C18

tetradic

#181C7C #7C184E #7C7818 #187C46

square

#181C7C #7C184E #7C7818 #187C46

split-complementary

#181C7C #7C4618 #4E7C18

monochromatic

#05061A #0E1049 #181C7C #2228AF #363DD8

Accessibility & contrast

On white

14.04

#181C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#181C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C7C

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C7C	#FFFFFF	#000000	##FFFFFF
##181C7C	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317F

Deuteranopia (green-blind)

#00277A

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #181c7c;
/* rgb */ color: rgb(24, 28, 124);
/* oklch */ color: oklch(30.6% 0.157 270.8);

Tailwind

colors: {
  custom: {
    50: '#6959a3',
    500: '#181c7c',
    950: '#000000',
  },
}

SCSS

$custom: #181c7c;
$custom-light: #6959a3;
$custom-dark: #000000;

JSON

{
  "hex": "#181c7c",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 124
  },
  "hsl": {
    "h": 237.6,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.306,
    "c": 0.15652,
    "h": 270.8
  },
  "luminance": 0.0248
}

Semantic roles & 50–950 ramp

primary

#181C7C

secondary

#B1AC3F

accent

#E43DEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181C7C

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

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