#1D1D83#1D1D83

#1D1D83 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.163 H 272.2°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D83
RGB	rgb(29, 29, 131)
HSL	hsl(240, 64%, 31%)
HSV	hsv(240, 78%, 51%)
CMYK	cmyk(77.9%, 77.9%, 0%, 48.6%)
CIE-LAB	lab(19.13, 36.43, -56.32)
CIE-LCH	lch(19.13, 67.08, 302.90°)
OKLab	oklab(31.84% 0.0063 -0.163)
OKLCH	oklch(31.84% 0.163 272.2)
XYZ	xyz(5.0414, 2.7781, 21.7389)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D83 #83831D

analogous

#1D5083 #1D1D83 #501D83

triadic

#1D1D83 #831D1D #1D831D

tetradic

#1D1D83 #831D50 #83831D #1D8350

square

#1D1D83 #831D50 #83831D #1D8350

split-complementary

#1D1D83 #83501D #50831D

monochromatic

#07071F #121251 #1D1D83 #2828B5 #4545D6

Accessibility & contrast

On white

13.50

#1D1D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1D1D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D83

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D83	#FFFFFF	#000000	##FFFFFF
##1D1D83	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003386

Deuteranopia (green-blind)

#002981

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d1d83;
/* rgb */ color: rgb(29, 29, 131);
/* oklch */ color: oklch(31.8% 0.163 272.2);

Tailwind

colors: {
  custom: {
    50: '#6c5ba8',
    500: '#1d1d83',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d83;
$custom-light: #6c5ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d83",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 131
  },
  "hsl": {
    "h": 240,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31843,
    "c": 0.16314,
    "h": 272.2
  },
  "luminance": 0.02779
}

Semantic roles & 50–950 ramp

primary

#1D1D83

secondary

#B6B646

accent

#E741E7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1D83

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

Preview Lab → · Contrast checker → · Palette generator →