#181A6B#181A6B

#181A6B is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.136 H 272.5°. Best body text is #FFFFFF at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#181A6B
RGB	rgb(24, 26, 107)
HSL	hsl(239, 63%, 26%)
HSV	hsv(239, 78%, 42%)
CMYK	cmyk(77.6%, 75.7%, 0%, 58%)
CIE-LAB	lab(15.46, 29.14, -46.98)
CIE-LCH	lch(15.46, 55.28, 301.81°)
OKLab	oklab(28.34% 0.006 -0.1359)
OKLCH	oklch(28.34% 0.136 272.5)
XYZ	xyz(3.3990, 1.9942, 14.1128)
Luminance	0.0199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A6B #6B6918

analogous

#18436B #181A6B #3F186B

triadic

#181A6B #6B181A #1A6B18

tetradic

#181A6B #6B1843 #6B6918 #186B3F

square

#181A6B #6B1843 #6B6918 #186B3F

split-complementary

#181A6B #6B3F18 #436B18

monochromatic

#060619 #0D0E39 #181A6B #23269D #2E32CF

Accessibility & contrast

On white

15.01

#181A6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#181A6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A6B

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A6B	#FFFFFF	#000000	##FFFFFF
##181A6B	1.00	15.01	1.40	15.01
#FFFFFF	15.01	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6D

Deuteranopia (green-blind)

#00236A

Tritanopia (blue-blind)

#003140

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181a6b;
/* rgb */ color: rgb(24, 26, 107);
/* oklch */ color: oklch(28.3% 0.136 272.5);

Tailwind

colors: {
  custom: {
    50: '#645796',
    500: '#181a6b',
    950: '#000000',
  },
}

SCSS

$custom: #181a6b;
$custom-light: #645796;
$custom-dark: #000000;

JSON

{
  "hex": "#181a6b",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 107
  },
  "hsl": {
    "h": 238.554,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28341,
    "c": 0.13606,
    "h": 272.5
  },
  "luminance": 0.01995
}

Semantic roles & 50–950 ramp

primary

#181A6B

secondary

#A19E3E

accent

#E241E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181A6B

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

Preview Lab → · Contrast checker → · Palette generator →