#181A6C#181A6C

#181A6C is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.5% C 0.137 H 272.4°. Best body text is #FFFFFF at 14.97:1 contrast (WCAG AA passes).

Color values

HEX	#181A6C
RGB	rgb(24, 26, 108)
HSL	hsl(239, 64%, 26%)
HSV	hsv(239, 78%, 42%)
CMYK	cmyk(77.8%, 75.9%, 0%, 57.6%)
CIE-LAB	lab(15.57, 29.51, -47.45)
CIE-LCH	lch(15.57, 55.88, 301.88°)
OKLab	oklab(28.45% 0.0059 -0.1373)
OKLCH	oklch(28.45% 0.137 272.4)
XYZ	xyz(3.4519, 2.0153, 14.3915)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A6C #6C6A18

analogous

#18446C #181A6C #40186C

triadic

#181A6C #6C181A #1A6C18

tetradic

#181A6C #6C1844 #6C6A18 #186C40

square

#181A6C #6C1844 #6C6A18 #186C40

split-complementary

#181A6C #6C4018 #446C18

monochromatic

#060619 #0D0E3A #181A6C #23269E #2E32D0

Accessibility & contrast

On white

14.97

#181A6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#181A6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A6C

14.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A6C	#FFFFFF	#000000	##FFFFFF
##181A6C	1.00	14.97	1.40	14.97
#FFFFFF	14.97	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6E

Deuteranopia (green-blind)

#00236B

Tritanopia (blue-blind)

#003141

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181a6c;
/* rgb */ color: rgb(24, 26, 108);
/* oklch */ color: oklch(28.5% 0.137 272.4);

Tailwind

colors: {
  custom: {
    50: '#645797',
    500: '#181a6c',
    950: '#000000',
  },
}

SCSS

$custom: #181a6c;
$custom-light: #645797;
$custom-dark: #000000;

JSON

{
  "hex": "#181a6c",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 108
  },
  "hsl": {
    "h": 238.571,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28454,
    "c": 0.13744,
    "h": 272.4
  },
  "luminance": 0.02016
}

Semantic roles & 50–950 ramp

primary

#181A6C

secondary

#A29F3E

accent

#E341E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #181A6C

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

Preview Lab → · Contrast checker → · Palette generator →