#1D1B87#1D1B87

#1D1B87 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.170 H 272.1°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D1B87
RGB	rgb(29, 27, 135)
HSL	hsl(241, 67%, 32%)
HSV	hsv(241, 80%, 53%)
CMYK	cmyk(78.5%, 80%, 0%, 47.1%)
CIE-LAB	lab(19.20, 38.95, -58.73)
CIE-LCH	lch(19.20, 70.47, 303.55°)
OKLab	oklab(32.03% 0.0063 -0.17)
OKLCH	oklch(32.03% 0.17 272.1)
XYZ	xyz(5.2703, 2.7938, 23.1785)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1B87 #85871B

analogous

#1B4F87 #1D1B87 #531B87

triadic

#1D1B87 #871D1B #1B871D

tetradic

#1D1B87 #871B4F #85871B #1B8753

square

#1D1B87 #871B4F #85871B #1B8753

split-complementary

#1D1B87 #87531B #4F871B

monochromatic

#070721 #121154 #1D1B87 #2825BA #4643D9

Accessibility & contrast

On white

13.47

#1D1B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1D1B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1B87

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1B87	#FFFFFF	#000000	##FFFFFF
##1D1B87	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348A

Deuteranopia (green-blind)

#002985

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d1b87;
/* rgb */ color: rgb(29, 27, 135);
/* oklch */ color: oklch(32.0% 0.170 272.1);

Tailwind

colors: {
  custom: {
    50: '#6d5aab',
    500: '#1d1b87',
    950: '#000000',
  },
}

SCSS

$custom: #1d1b87;
$custom-light: #6d5aab;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1b87",
  "rgb": {
    "r": 29,
    "g": 27,
    "b": 135
  },
  "hsl": {
    "h": 241.111,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.32026,
    "c": 0.17012,
    "h": 272.1
  },
  "luminance": 0.02794
}

Semantic roles & 50–950 ramp

primary

#1D1B87

secondary

#B8BA44

accent

#EA3EE6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1B87

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

Preview Lab → · Contrast checker → · Palette generator →