#1D18CA#1D18CA

#1D18CA is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 40.0% C 0.249 H 268.2°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#1D18CA
RGB	rgb(29, 24, 202)
HSL	hsl(242, 79%, 44%)
HSV	hsv(242, 88%, 79%)
CMYK	cmyk(85.6%, 88.1%, 0%, 20.8%)
CIE-LAB	lab(27.23, 60.88, -85.95)
CIE-LCH	lch(27.23, 105.32, 305.31°)
OKLab	oklab(39.98% -0.0079 -0.2486)
OKLCH	oklch(39.98% 0.249 268.2)
XYZ	xyz(11.4904, 5.1773, 56.2594)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D18CA #C5CA18

analogous

#186CCA #1D18CA #7618CA

triadic

#1D18CA #CA1D18 #18CA1D

tetradic

#1D18CA #CA186C #C5CA18 #18CA76

square

#1D18CA #CA186C #C5CA18 #18CA76

split-complementary

#1D18CA #CA7618 #6CCA18

monochromatic

#0D0B5D #151293 #1D18CA #3D38E7 #726FEE

Accessibility & contrast

On white

10.32

#1D18CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1D18CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D18CA

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D18CA	#FFFFFF	#000000	##FFFFFF
##1D18CA	1.00	10.32	2.04	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049CF

Deuteranopia (green-blind)

#0037C7

Tritanopia (blue-blind)

#005777

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d18ca;
/* rgb */ color: rgb(29, 24, 202);
/* oklch */ color: oklch(40.0% 0.249 268.2);

Tailwind

colors: {
  custom: {
    50: '#7f5edc',
    500: '#1d18ca',
    950: '#000000',
  },
}

SCSS

$custom: #1d18ca;
$custom-light: #7f5edc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d18ca",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 202
  },
  "hsl": {
    "h": 241.685,
    "s": 78.761,
    "l": 44.314
  },
  "oklch": {
    "l": 0.39979,
    "c": 0.24876,
    "h": 268.2
  },
  "luminance": 0.05179
}

Semantic roles & 50–950 ramp

primary

#1D18CA

secondary

#D1D46A

accent

#F533F0

background

#F8F5FD

surface

#F0EAFB

border

#CBC6D4

text

#0D0515

muted

#7D7983

Preview Lab

Preview with #1D18CA

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

Preview Lab → · Contrast checker → · Palette generator →