#1D18A0#1D18A0

#1D18A0 is a dark, highly saturated blue. Relative luminance 0.035; OKLCH L 34.7% C 0.202 H 270.4°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#1D18A0
RGB	rgb(29, 24, 160)
HSL	hsl(242, 74%, 36%)
HSV	hsv(242, 85%, 63%)
CMYK	cmyk(81.9%, 85%, 0%, 37.3%)
CIE-LAB	lab(21.77, 48.53, -69.95)
CIE-LCH	lch(21.77, 85.14, 304.75°)
OKLab	oklab(34.7% 0.0013 -0.2024)
OKLCH	oklch(34.7% 0.202 270.4)
XYZ	xyz(7.1763, 3.4517, 33.5389)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D18A0 #9BA018

analogous

#1857A0 #1D18A0 #6118A0

triadic

#1D18A0 #A01D18 #18A01D

tetradic

#1D18A0 #A01857 #9BA018 #18A061

square

#1D18A0 #A01857 #9BA018 #18A061

split-complementary

#1D18A0 #A06118 #57A018

monochromatic

#0A0836 #13106B #1D18A0 #2720D5 #534EE4

Accessibility & contrast

On white

12.42

#1D18A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1D18A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D18A0

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D18A0	#FFFFFF	#000000	##FFFFFF
##1D18A0	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA4

Deuteranopia (green-blind)

#002D9E

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d18a0;
/* rgb */ color: rgb(29, 24, 160);
/* oklch */ color: oklch(34.7% 0.202 270.4);

Tailwind

colors: {
  custom: {
    50: '#745abe',
    500: '#1d18a0',
    950: '#000000',
  },
}

SCSS

$custom: #1d18a0;
$custom-light: #745abe;
$custom-dark: #000000;

JSON

{
  "hex": "#1d18a0",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 160
  },
  "hsl": {
    "h": 242.206,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.347,
    "c": 0.20243,
    "h": 270.4
  },
  "luminance": 0.03453
}

Semantic roles & 50–950 ramp

primary

#1D18A0

secondary

#C2C64D

accent

#F137EA

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D18A0

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

Preview Lab → · Contrast checker → · Palette generator →