#181A7C#181A7C

#181A7C is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.159 H 271.1°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#181A7C
RGB	rgb(24, 26, 124)
HSL	hsl(239, 68%, 29%)
HSV	hsv(239, 81%, 49%)
CMYK	cmyk(80.6%, 79%, 0%, 51.4%)
CIE-LAB	lab(17.40, 35.32, -54.75)
CIE-LCH	lch(17.40, 65.15, 302.83°)
OKLab	oklab(30.3% 0.0029 -0.1585)
OKLCH	oklch(30.3% 0.159 271.1)
XYZ	xyz(4.3829, 2.3877, 19.2948)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A7C #7C7A18

analogous

#184C7C #181A7C #48187C

triadic

#181A7C #7C181A #1A7C18

tetradic

#181A7C #7C184C #7C7A18 #187C48

square

#181A7C #7C184C #7C7A18 #187C48

split-complementary

#181A7C #7C4818 #4C7C18

monochromatic

#05051A #0E0F49 #181A7C #2225AF #3639D8

Accessibility & contrast

On white

14.21

#181A7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#181A7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A7C

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A7C	#FFFFFF	#000000	##FFFFFF
##181A7C	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307F

Deuteranopia (green-blind)

#00267A

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181a7c;
/* rgb */ color: rgb(24, 26, 124);
/* oklch */ color: oklch(30.3% 0.159 271.1);

Tailwind

colors: {
  custom: {
    50: '#6958a3',
    500: '#181a7c',
    950: '#000000',
  },
}

SCSS

$custom: #181a7c;
$custom-light: #6958a3;
$custom-dark: #000000;

JSON

{
  "hex": "#181a7c",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 124
  },
  "hsl": {
    "h": 238.8,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30301,
    "c": 0.15855,
    "h": 271.1
  },
  "luminance": 0.02388
}

Semantic roles & 50–950 ramp

primary

#181A7C

secondary

#B1AE3F

accent

#E73DEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181A7C

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

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