#181A6D#181A6D

#181A6D is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.139 H 272.4°. Best body text is #FFFFFF at 14.92:1 contrast (WCAG AA passes).

Color values

HEX	#181A6D
RGB	rgb(24, 26, 109)
HSL	hsl(239, 64%, 26%)
HSV	hsv(239, 78%, 43%)
CMYK	cmyk(78%, 76.1%, 0%, 57.3%)
CIE-LAB	lab(15.68, 29.89, -47.92)
CIE-LCH	lch(15.68, 56.48, 301.95°)
OKLab	oklab(28.57% 0.0057 -0.1387)
OKLCH	oklch(28.57% 0.139 272.4)
XYZ	xyz(3.5055, 2.0367, 14.6734)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A6D #6D6B18

analogous

#18446D #181A6D #40186D

triadic

#181A6D #6D181A #1A6D18

tetradic

#181A6D #6D1844 #6D6B18 #186D40

square

#181A6D #6D1844 #6D6B18 #186D40

split-complementary

#181A6D #6D4018 #446D18

monochromatic

#060619 #0D0E3B #181A6D #23269F #2E32D1

Accessibility & contrast

On white

14.92

#181A6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#181A6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A6D

14.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A6D	#FFFFFF	#000000	##FFFFFF
##181A6D	1.00	14.92	1.41	14.92
#FFFFFF	14.92	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6F

Deuteranopia (green-blind)

#00236C

Tritanopia (blue-blind)

#003241

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181a6d;
/* rgb */ color: rgb(24, 26, 109);
/* oklch */ color: oklch(28.6% 0.139 272.4);

Tailwind

colors: {
  custom: {
    50: '#655798',
    500: '#181a6d',
    950: '#000000',
  },
}

SCSS

$custom: #181a6d;
$custom-light: #655798;
$custom-dark: #000000;

JSON

{
  "hex": "#181a6d",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 109
  },
  "hsl": {
    "h": 238.588,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28566,
    "c": 0.13879,
    "h": 272.4
  },
  "luminance": 0.02037
}

Semantic roles & 50–950 ramp

primary

#181A6D

secondary

#A3A03E

accent

#E341E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #181A6D

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

Preview Lab → · Contrast checker → · Palette generator →