#181971#181971

#181971 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.9% C 0.145 H 272.2°. Best body text is #FFFFFF at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#181971
RGB	rgb(24, 25, 113)
HSL	hsl(239, 65%, 27%)
HSV	hsv(239, 79%, 44%)
CMYK	cmyk(78.8%, 77.9%, 0%, 55.7%)
CIE-LAB	lab(15.91, 31.98, -50.14)
CIE-LCH	lch(15.91, 59.47, 302.53°)
OKLab	oklab(28.87% 0.0055 -0.1451)
OKLCH	oklch(28.87% 0.145 272.2)
XYZ	xyz(3.7040, 2.0813, 15.8261)
Luminance	0.0208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181971 #717018

analogous

#184671 #181971 #441871

triadic

#181971 #711819 #197118

tetradic

#181971 #711846 #717018 #187144

square

#181971 #711846 #717018 #187144

split-complementary

#181971 #714418 #467118

monochromatic

#050619 #0D0E3F #181971 #2324A3 #3032D3

Accessibility & contrast

On white

14.83

#181971 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#181971 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181971

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181971	#FFFFFF	#000000	##FFFFFF
##181971	1.00	14.83	1.42	14.83
#FFFFFF	14.83	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C74

Deuteranopia (green-blind)

#00236F

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181971;
/* rgb */ color: rgb(24, 25, 113);
/* oklch */ color: oklch(28.9% 0.145 272.2);

Tailwind

colors: {
  custom: {
    50: '#66579b',
    500: '#181971',
    950: '#000000',
  },
}

SCSS

$custom: #181971;
$custom-light: #66579b;
$custom-dark: #000000;

JSON

{
  "hex": "#181971",
  "rgb": {
    "r": 24,
    "g": 25,
    "b": 113
  },
  "hsl": {
    "h": 239.326,
    "s": 64.964,
    "l": 26.863
  },
  "oklch": {
    "l": 0.28865,
    "c": 0.14523,
    "h": 272.2
  },
  "luminance": 0.02082
}

Semantic roles & 50–950 ramp

primary

#181971

secondary

#A6A53E

accent

#E640E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181971

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

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