#181A70#181A70

#181A70 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.9% C 0.143 H 272.1°. Best body text is #FFFFFF at 14.78:1 contrast (WCAG AA passes).

Color values

HEX	#181A70
RGB	rgb(24, 26, 112)
HSL	hsl(239, 65%, 27%)
HSV	hsv(239, 79%, 44%)
CMYK	cmyk(78.6%, 76.8%, 0%, 56.1%)
CIE-LAB	lab(16.02, 30.99, -49.32)
CIE-LCH	lch(16.02, 58.25, 302.15°)
OKLab	oklab(28.91% 0.0052 -0.1427)
OKLCH	oklch(28.91% 0.143 272.1)
XYZ	xyz(3.6697, 2.1024, 15.5385)
Luminance	0.0210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A70 #706E18

analogous

#184670 #181A70 #421870

triadic

#181A70 #70181A #1A7018

tetradic

#181A70 #701846 #706E18 #187042

square

#181A70 #701846 #706E18 #187042

split-complementary

#181A70 #704218 #467018

monochromatic

#050619 #0D0E3E #181A70 #2326A2 #3034D3

Accessibility & contrast

On white

14.78

#181A70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#181A70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A70

14.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A70	#FFFFFF	#000000	##FFFFFF
##181A70	1.00	14.78	1.42	14.78
#FFFFFF	14.78	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C73

Deuteranopia (green-blind)

#00236E

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181a70;
/* rgb */ color: rgb(24, 26, 112);
/* oklch */ color: oklch(28.9% 0.143 272.1);

Tailwind

colors: {
  custom: {
    50: '#65579a',
    500: '#181a70',
    950: '#000000',
  },
}

SCSS

$custom: #181a70;
$custom-light: #65579a;
$custom-dark: #000000;

JSON

{
  "hex": "#181a70",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 112
  },
  "hsl": {
    "h": 238.636,
    "s": 64.706,
    "l": 26.667
  },
  "oklch": {
    "l": 0.28907,
    "c": 0.14283,
    "h": 272.1
  },
  "luminance": 0.02103
}

Semantic roles & 50–950 ramp

primary

#181A70

secondary

#A5A33E

accent

#E440E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181A70

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

Preview Lab → · Contrast checker → · Palette generator →