#181A6E#181A6E

#181A6E is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.7% C 0.140 H 272.3°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#181A6E
RGB	rgb(24, 26, 110)
HSL	hsl(239, 64%, 26%)
HSV	hsv(239, 78%, 43%)
CMYK	cmyk(78.2%, 76.4%, 0%, 56.9%)
CIE-LAB	lab(15.79, 30.26, -48.39)
CIE-LCH	lch(15.79, 57.07, 302.02°)
OKLab	oklab(28.68% 0.0055 -0.14)
OKLCH	oklch(28.68% 0.14 272.3)
XYZ	xyz(3.5596, 2.0584, 14.9585)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A6E #6E6C18

analogous

#18456E #181A6E #41186E

triadic

#181A6E #6E181A #1A6E18

tetradic

#181A6E #6E1845 #6E6C18 #186E41

square

#181A6E #6E1845 #6E6C18 #186E41

split-complementary

#181A6E #6E4118 #456E18

monochromatic

#050619 #0D0E3C #181A6E #2326A0 #2F33D2

Accessibility & contrast

On white

14.87

#181A6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#181A6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A6E

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A6E	#FFFFFF	#000000	##FFFFFF
##181A6E	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B70

Deuteranopia (green-blind)

#00236C

Tritanopia (blue-blind)

#003242

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181a6e;
/* rgb */ color: rgb(24, 26, 110);
/* oklch */ color: oklch(28.7% 0.140 272.3);

Tailwind

colors: {
  custom: {
    50: '#655799',
    500: '#181a6e',
    950: '#000000',
  },
}

SCSS

$custom: #181a6e;
$custom-light: #655799;
$custom-dark: #000000;

JSON

{
  "hex": "#181a6e",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 110
  },
  "hsl": {
    "h": 238.605,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.2868,
    "c": 0.14014,
    "h": 272.3
  },
  "luminance": 0.02059
}

Semantic roles & 50–950 ramp

primary

#181A6E

secondary

#A4A13E

accent

#E341E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #181A6E

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

Preview Lab → · Contrast checker → · Palette generator →