#181D70#181D70

#181D70 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.139 H 271.5°. Best body text is #FFFFFF at 14.50:1 contrast (WCAG AA passes).

Color values

HEX	#181D70
RGB	rgb(24, 29, 112)
HSL	hsl(237, 65%, 27%)
HSV	hsv(237, 79%, 44%)
CMYK	cmyk(78.6%, 74.1%, 0%, 56.1%)
CIE-LAB	lab(16.71, 29.06, -48.17)
CIE-LCH	lch(16.71, 56.26, 301.11°)
OKLab	oklab(29.4% 0.0036 -0.1394)
OKLCH	oklch(29.4% 0.139 271.5)
XYZ	xyz(3.7397, 2.2424, 15.5618)
Luminance	0.0224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D70 #706B18

analogous

#184970 #181D70 #3F1870

triadic

#181D70 #70181D #1D7018

tetradic

#181D70 #701849 #706B18 #18703F

square

#181D70 #701849 #706B18 #18703F

split-complementary

#181D70 #703F18 #497018

monochromatic

#050719 #0D103E #181D70 #232AA2 #3039D3

Accessibility & contrast

On white

14.50

#181D70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#181D70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D70

14.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D70	#FFFFFF	#000000	##FFFFFF
##181D70	1.00	14.50	1.45	14.50
#FFFFFF	14.50	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E72

Deuteranopia (green-blind)

#00256E

Tritanopia (blue-blind)

#003444

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181d70;
/* rgb */ color: rgb(24, 29, 112);
/* oklch */ color: oklch(29.4% 0.139 271.5);

Tailwind

colors: {
  custom: {
    50: '#65599a',
    500: '#181d70',
    950: '#000000',
  },
}

SCSS

$custom: #181d70;
$custom-light: #65599a;
$custom-dark: #000000;

JSON

{
  "hex": "#181d70",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 112
  },
  "hsl": {
    "h": 236.591,
    "s": 64.706,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29405,
    "c": 0.13946,
    "h": 271.5
  },
  "luminance": 0.02243
}

Semantic roles & 50–950 ramp

primary

#181D70

secondary

#A5A03E

accent

#DE40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181D70

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

Preview Lab → · Contrast checker → · Palette generator →