#1D1780#1D1780

#1D1780 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.7% C 0.165 H 273.3°. Best body text is #FFFFFF at 14.13:1 contrast (WCAG AA passes).

Color values

HEX	#1D1780
RGB	rgb(29, 23, 128)
HSL	hsl(243, 70%, 30%)
HSV	hsv(243, 82%, 50%)
CMYK	cmyk(77.3%, 82%, 0%, 49.8%)
CIE-LAB	lab(17.61, 38.77, -56.94)
CIE-LCH	lch(17.61, 68.89, 304.25°)
OKLab	oklab(30.67% 0.0094 -0.1647)
OKLCH	oklch(30.67% 0.165 273.3)
XYZ	xyz(4.7081, 2.4320, 20.6392)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1780 #7A8017

analogous

#174580 #1D1780 #521780

triadic

#1D1780 #801D17 #17801D

tetradic

#1D1780 #801745 #7A8017 #178052

square

#1D1780 #801745 #7A8017 #178052

split-complementary

#1D1780 #805217 #458017

monochromatic

#06051A #110E4C #1D1780 #2920B4 #4036DB

Accessibility & contrast

On white

14.13

#1D1780 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1D1780 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1780

14.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1780	#FFFFFF	#000000	##FFFFFF
##1D1780	1.00	14.13	1.49	14.13
#FFFFFF	14.13	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003083

Deuteranopia (green-blind)

#00267E

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1d1780;
/* rgb */ color: rgb(29, 23, 128);
/* oklch */ color: oklch(30.7% 0.165 273.3);

Tailwind

colors: {
  custom: {
    50: '#6c57a6',
    500: '#1d1780',
    950: '#000000',
  },
}

SCSS

$custom: #1d1780;
$custom-light: #6c57a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1780",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 128
  },
  "hsl": {
    "h": 243.429,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30669,
    "c": 0.16502,
    "h": 273.3
  },
  "luminance": 0.02433
}

Semantic roles & 50–950 ramp

primary

#1D1780

secondary

#AEB43E

accent

#EC3BE2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1D1780

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

Preview Lab → · Contrast checker → · Palette generator →