#181C7A#181C7A

#181C7A is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.154 H 270.9°. Best body text is #FFFFFF at 14.13:1 contrast (WCAG AA passes).

Color values

HEX	#181C7A
RGB	rgb(24, 28, 122)
HSL	hsl(238, 67%, 29%)
HSV	hsv(238, 80%, 48%)
CMYK	cmyk(80.3%, 77%, 0%, 52.2%)
CIE-LAB	lab(17.60, 33.40, -53.15)
CIE-LCH	lch(17.60, 62.77, 302.15°)
OKLab	oklab(30.37% 0.0025 -0.1539)
OKLCH	oklch(30.37% 0.154 270.9)
XYZ	xyz(4.3036, 2.4294, 18.6507)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C7A #7A7618

analogous

#184D7A #181C7A #45187A

triadic

#181C7A #7A181C #1C7A18

tetradic

#181C7A #7A184D #7A7618 #187A45

square

#181C7A #7A184D #7A7618 #187A45

split-complementary

#181C7A #7A4518 #4D7A18

monochromatic

#05061A #0E1047 #181C7A #2228AD #353CD7

Accessibility & contrast

On white

14.13

#181C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#181C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C7A

14.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C7A	#FFFFFF	#000000	##FFFFFF
##181C7A	1.00	14.13	1.49	14.13
#FFFFFF	14.13	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307D

Deuteranopia (green-blind)

#002678

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181c7a;
/* rgb */ color: rgb(24, 28, 122);
/* oklch */ color: oklch(30.4% 0.154 270.9);

Tailwind

colors: {
  custom: {
    50: '#6859a2',
    500: '#181c7a',
    950: '#000000',
  },
}

SCSS

$custom: #181c7a;
$custom-light: #6859a2;
$custom-dark: #000000;

JSON

{
  "hex": "#181c7a",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 122
  },
  "hsl": {
    "h": 237.551,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.3037,
    "c": 0.15392,
    "h": 270.9
  },
  "luminance": 0.0243
}

Semantic roles & 50–950 ramp

primary

#181C7A

secondary

#AFAA3F

accent

#E33EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181C7A

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

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