#181A68#181A68

#181A68 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.132 H 272.8°. Best body text is #FFFFFF at 15.15:1 contrast (WCAG AA passes).

Color values

HEX	#181A68
RGB	rgb(24, 26, 104)
HSL	hsl(239, 63%, 25%)
HSV	hsv(239, 77%, 41%)
CMYK	cmyk(76.9%, 75%, 0%, 59.2%)
CIE-LAB	lab(15.13, 28.02, -45.56)
CIE-LCH	lch(15.13, 53.48, 301.59°)
OKLab	oklab(28.01% 0.0065 -0.1318)
OKLCH	oklch(28.01% 0.132 272.8)
XYZ	xyz(3.2439, 1.9321, 13.2960)
Luminance	0.0193 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A68 #686618

analogous

#184268 #181A68 #3E1868

triadic

#181A68 #68181A #1A6818

tetradic

#181A68 #681842 #686618 #18683E

square

#181A68 #681842 #686618 #18683E

split-complementary

#181A68 #683E18 #426818

monochromatic

#060619 #0D0E36 #181A68 #23269A #2F33CB

Accessibility & contrast

On white

15.15

#181A68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#181A68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A68

15.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A68	#FFFFFF	#000000	##FFFFFF
##181A68	1.00	15.15	1.39	15.15
#FFFFFF	15.15	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6A

Deuteranopia (green-blind)

#002267

Tritanopia (blue-blind)

#00303F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181a68;
/* rgb */ color: rgb(24, 26, 104);
/* oklch */ color: oklch(28.0% 0.132 272.8);

Tailwind

colors: {
  custom: {
    50: '#635794',
    500: '#181a68',
    950: '#000000',
  },
}

SCSS

$custom: #181a68;
$custom-light: #635794;
$custom-dark: #000000;

JSON

{
  "hex": "#181a68",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 104
  },
  "hsl": {
    "h": 238.5,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28006,
    "c": 0.13194,
    "h": 272.8
  },
  "luminance": 0.01932
}

Semantic roles & 50–950 ramp

primary

#181A68

secondary

#9E9C3E

accent

#E142E6

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181A68

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

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