#1D1D79#1D1D79

#1D1D79 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.150 H 273.1°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D79
RGB	rgb(29, 29, 121)
HSL	hsl(240, 61%, 29%)
HSV	hsv(240, 76%, 47%)
CMYK	cmyk(76%, 76%, 0%, 52.5%)
CIE-LAB	lab(18.01, 32.89, -51.82)
CIE-LCH	lch(18.01, 61.37, 302.40°)
OKLab	oklab(30.71% 0.0082 -0.1499)
OKLCH	oklch(30.71% 0.15 273.1)
XYZ	xyz(4.3961, 2.5200, 18.3402)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D79 #79791D

analogous

#1D4B79 #1D1D79 #4B1D79

triadic

#1D1D79 #791D1D #1D791D

tetradic

#1D1D79 #791D4B #79791D #1D794B

square

#1D1D79 #791D4B #79791D #1D794B

split-complementary

#1D1D79 #794B1D #4B791D

monochromatic

#060619 #111148 #1D1D79 #2929AA #3F3FD1

Accessibility & contrast

On white

13.96

#1D1D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1D1D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D79

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D79	#FFFFFF	#000000	##FFFFFF
##1D1D79	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307C

Deuteranopia (green-blind)

#002877

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d1d79;
/* rgb */ color: rgb(29, 29, 121);
/* oklch */ color: oklch(30.7% 0.150 273.1);

Tailwind

colors: {
  custom: {
    50: '#695aa1',
    500: '#1d1d79',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d79;
$custom-light: #695aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d79",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 121
  },
  "hsl": {
    "h": 240,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30712,
    "c": 0.15015,
    "h": 273.1
  },
  "luminance": 0.0252
}

Semantic roles & 50–950 ramp

primary

#1D1D79

secondary

#ADAD45

accent

#E443E4

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D1D79

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

Preview Lab → · Contrast checker → · Palette generator →