#1D1663#1D1663

#1D1663 is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.2% C 0.128 H 277.6°. Best body text is #FFFFFF at 15.59:1 contrast (WCAG AA passes).

Color values

HEX	#1D1663
RGB	rgb(29, 22, 99)
HSL	hsl(245, 64%, 24%)
HSV	hsv(245, 78%, 39%)
CMYK	cmyk(70.7%, 77.8%, 0%, 61.2%)
CIE-LAB	lab(14.03, 29.35, -44.04)
CIE-LCH	lch(14.03, 52.93, 303.67°)
OKLab	oklab(27.16% 0.017 -0.1272)
OKLCH	oklch(27.16% 0.128 277.6)
XYZ	xyz(3.0450, 1.7356, 11.9765)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1663 #5C6316

analogous

#163563 #1D1663 #431663

triadic

#1D1663 #631D16 #16631D

tetradic

#1D1663 #631635 #5C6316 #166343

square

#1D1663 #631635 #5C6316 #166343

split-complementary

#1D1663 #634316 #356316

monochromatic

#070619 #0E0B31 #1D1663 #2C2195 #3A2CC7

Accessibility & contrast

On white

15.59

#1D1663 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1D1663 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1663

15.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1663	#FFFFFF	#000000	##FFFFFF
##1D1663	1.00	15.59	1.35	15.59
#FFFFFF	15.59	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002765

Deuteranopia (green-blind)

#002062

Tritanopia (blue-blind)

#002C3B

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1d1663;
/* rgb */ color: rgb(29, 22, 99);
/* oklch */ color: oklch(27.2% 0.128 277.6);

Tailwind

colors: {
  custom: {
    50: '#645490',
    500: '#1d1663',
    950: '#000000',
  },
}

SCSS

$custom: #1d1663;
$custom-light: #645490;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1663",
  "rgb": {
    "r": 29,
    "g": 22,
    "b": 99
  },
  "hsl": {
    "h": 245.455,
    "s": 63.636,
    "l": 23.725
  },
  "oklch": {
    "l": 0.27158,
    "c": 0.12834,
    "h": 277.6
  },
  "luminance": 0.01736
}

Semantic roles & 50–950 ramp

primary

#1D1663

secondary

#919A3B

accent

#E741D8

background

#F6F4F8

surface

#EBE8F0

border

#C6C4CB

text

#06030D

muted

#7A787D

Preview Lab

Preview with #1D1663

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

Preview Lab → · Contrast checker → · Palette generator →