#181C7D#181C7D

#181C7D is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.158 H 270.7°. Best body text is #FFFFFF at 13.99:1 contrast (WCAG AA passes).

Color values

HEX	#181C7D
RGB	rgb(24, 28, 125)
HSL	hsl(238, 68%, 29%)
HSV	hsv(238, 81%, 49%)
CMYK	cmyk(80.8%, 77.6%, 0%, 51%)
CIE-LAB	lab(17.94, 34.48, -54.49)
CIE-LCH	lch(17.94, 64.49, 302.33°)
OKLab	oklab(30.72% 0.002 -0.1578)
OKLCH	oklch(30.72% 0.158 270.7)
XYZ	xyz(4.4924, 2.5049, 19.6448)
Luminance	0.0250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C7D #7D7918

analogous

#184F7D #181C7D #47187D

triadic

#181C7D #7D181C #1C7D18

tetradic

#181C7D #7D184F #7D7918 #187D47

square

#181C7D #7D184F #7D7918 #187D47

split-complementary

#181C7D #7D4718 #4F7D18

monochromatic

#05061A #0E104A #181C7D #2228B0 #373DD9

Accessibility & contrast

On white

13.99

#181C7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#181C7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C7D

13.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C7D	#FFFFFF	#000000	##FFFFFF
##181C7D	1.00	13.99	1.50	13.99
#FFFFFF	13.99	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003180

Deuteranopia (green-blind)

#00277B

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #181c7d;
/* rgb */ color: rgb(24, 28, 125);
/* oklch */ color: oklch(30.7% 0.158 270.7);

Tailwind

colors: {
  custom: {
    50: '#6959a4',
    500: '#181c7d',
    950: '#000000',
  },
}

SCSS

$custom: #181c7d;
$custom-light: #6959a4;
$custom-dark: #000000;

JSON

{
  "hex": "#181c7d",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 125
  },
  "hsl": {
    "h": 237.624,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30716,
    "c": 0.15782,
    "h": 270.7
  },
  "luminance": 0.02505
}

Semantic roles & 50–950 ramp

primary

#181C7D

secondary

#B2AD3F

accent

#E43DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #181C7D

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

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