#1D108D#1D108D

#1D108D is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.186 H 272.4°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#1D108D
RGB	rgb(29, 16, 141)
HSL	hsl(246, 80%, 31%)
HSV	hsv(246, 89%, 55%)
CMYK	cmyk(79.4%, 88.7%, 0%, 44.7%)
CIE-LAB	lab(18.16, 46.12, -64.21)
CIE-LCH	lch(18.16, 79.06, 305.69°)
OKLab	oklab(31.53% 0.0078 -0.1857)
OKLCH	oklch(31.53% 0.186 272.4)
XYZ	xyz(5.4981, 2.5543, 25.3974)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D108D #808D10

analogous

#10418D #1D108D #5B108D

triadic

#1D108D #8D1D10 #108D1D

tetradic

#1D108D #8D1041 #808D10 #108D5B

square

#1D108D #8D1041 #808D10 #108D5B

split-complementary

#1D108D #8D5B10 #418D10

monochromatic

#06041F #120A56 #1D108D #2816C4 #4330E7

Accessibility & contrast

On white

13.90

#1D108D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1D108D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D108D

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D108D	#FFFFFF	#000000	##FFFFFF
##1D108D	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003290

Deuteranopia (green-blind)

#00268B

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d108d;
/* rgb */ color: rgb(29, 16, 141);
/* oklch */ color: oklch(31.5% 0.186 272.4);

Tailwind

colors: {
  custom: {
    50: '#7054b0',
    500: '#1d108d',
    950: '#000000',
  },
}

SCSS

$custom: #1d108d;
$custom-light: #7054b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d108d",
  "rgb": {
    "r": 29,
    "g": 16,
    "b": 141
  },
  "hsl": {
    "h": 246.24,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31525,
    "c": 0.18583,
    "h": 272.4
  },
  "luminance": 0.02555
}

Semantic roles & 50–950 ramp

primary

#1D108D

secondary

#B3C237

accent

#F632E2

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1D108D

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

Preview Lab → · Contrast checker → · Palette generator →