#181C6E#181C6E

#181C6E is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.0% C 0.138 H 271.8°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#181C6E
RGB	rgb(24, 28, 110)
HSL	hsl(237, 64%, 26%)
HSV	hsv(237, 78%, 43%)
CMYK	cmyk(78.2%, 74.5%, 0%, 56.9%)
CIE-LAB	lab(16.26, 28.97, -47.62)
CIE-LCH	lch(16.26, 55.74, 301.31°)
OKLab	oklab(29.01% 0.0044 -0.1378)
OKLCH	oklch(29.01% 0.138 271.8)
XYZ	xyz(3.6055, 2.1501, 14.9738)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C6E #6E6A18

analogous

#18476E #181C6E #3F186E

triadic

#181C6E #6E181C #1C6E18

tetradic

#181C6E #6E1847 #6E6A18 #186E3F

square

#181C6E #6E1847 #6E6A18 #186E3F

split-complementary

#181C6E #6E3F18 #476E18

monochromatic

#050619 #0D0F3C #181C6E #2329A0 #2F36D2

Accessibility & contrast

On white

14.69

#181C6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#181C6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C6E

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C6E	#FFFFFF	#000000	##FFFFFF
##181C6E	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C70

Deuteranopia (green-blind)

#00246D

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181c6e;
/* rgb */ color: rgb(24, 28, 110);
/* oklch */ color: oklch(29.0% 0.138 271.8);

Tailwind

colors: {
  custom: {
    50: '#655999',
    500: '#181c6e',
    950: '#000000',
  },
}

SCSS

$custom: #181c6e;
$custom-light: #655999;
$custom-dark: #000000;

JSON

{
  "hex": "#181c6e",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 110
  },
  "hsl": {
    "h": 237.209,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.29013,
    "c": 0.13787,
    "h": 271.8
  },
  "luminance": 0.0215
}

Semantic roles & 50–950 ramp

primary

#181C6E

secondary

#A49F3E

accent

#DF41E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #181C6E

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

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