#191D81#191D81

#191D81 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.162 H 270.7°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#191D81
RGB	rgb(25, 29, 129)
HSL	hsl(238, 68%, 30%)
HSV	hsv(238, 81%, 51%)
CMYK	cmyk(80.6%, 77.5%, 0%, 49.4%)
CIE-LAB	lab(18.67, 35.39, -55.83)
CIE-LCH	lch(18.67, 66.10, 302.37°)
OKLab	oklab(31.39% 0.002 -0.1617)
OKLCH	oklch(31.39% 0.162 270.7)
XYZ	xyz(4.8014, 2.6698, 21.0269)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191D81 #817D19

analogous

#195181 #191D81 #491981

triadic

#191D81 #81191D #1D8119

tetradic

#191D81 #811951 #817D19 #198149

square

#191D81 #811951 #817D19 #198149

split-complementary

#191D81 #814919 #518119

monochromatic

#05061A #0F114E #191D81 #2329B4 #3B41D9

Accessibility & contrast

On white

13.69

#191D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#191D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191D81

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191D81	#FFFFFF	#000000	##FFFFFF
##191D81	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003384

Deuteranopia (green-blind)

#00287F

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #191d81;
/* rgb */ color: rgb(25, 29, 129);
/* oklch */ color: oklch(31.4% 0.162 270.7);

Tailwind

colors: {
  custom: {
    50: '#6a5aa7',
    500: '#191d81',
    950: '#000000',
  },
}

SCSS

$custom: #191d81;
$custom-light: #6a5aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#191d81",
  "rgb": {
    "r": 25,
    "g": 29,
    "b": 129
  },
  "hsl": {
    "h": 237.692,
    "s": 67.532,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31385,
    "c": 0.16168,
    "h": 270.7
  },
  "luminance": 0.0267
}

Semantic roles & 50–950 ramp

primary

#191D81

secondary

#B5B141

accent

#E43DEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080410

muted

#7A797F

Preview Lab

Preview with #191D81

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

Preview Lab → · Contrast checker → · Palette generator →