#1D1D91#1D1D91

#1D1D91 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.181 H 271.1°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D91
RGB	rgb(29, 29, 145)
HSL	hsl(240, 67%, 34%)
HSV	hsv(240, 80%, 57%)
CMYK	cmyk(80%, 80%, 0%, 43.1%)
CIE-LAB	lab(20.76, 41.23, -62.38)
CIE-LCH	lch(20.76, 74.78, 303.46°)
OKLab	oklab(33.47% 0.0034 -0.1806)
OKLCH	oklch(33.47% 0.181 271.1)
XYZ	xyz(6.0552, 3.1836, 27.0779)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D91 #91911D

analogous

#1D5791 #1D1D91 #571D91

triadic

#1D1D91 #911D1D #1D911D

tetradic

#1D1D91 #911D57 #91911D #1D9157

square

#1D1D91 #911D57 #91911D #1D9157

split-complementary

#1D1D91 #91571D #57911D

monochromatic

#09092B #13135E #1D1D91 #2727C4 #4D4DDB

Accessibility & contrast

On white

12.83

#1D1D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1D1D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D91

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D91	#FFFFFF	#000000	##FFFFFF
##1D1D91	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003894

Deuteranopia (green-blind)

#002C8F

Tritanopia (blue-blind)

#004157

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d1d91;
/* rgb */ color: rgb(29, 29, 145);
/* oklch */ color: oklch(33.5% 0.181 271.1);

Tailwind

colors: {
  custom: {
    50: '#705bb3',
    500: '#1d1d91',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d91;
$custom-light: #705bb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d91",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 145
  },
  "hsl": {
    "h": 240,
    "s": 66.667,
    "l": 34.118
  },
  "oklch": {
    "l": 0.3347,
    "c": 0.18065,
    "h": 271.1
  },
  "luminance": 0.03184
}

Semantic roles & 50–950 ramp

primary

#1D1D91

secondary

#BEBE4C

accent

#EA3EEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1D1D91

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

Preview Lab → · Contrast checker → · Palette generator →