#1D218A#1D218A

#1D218A is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.2% C 0.168 H 271.1°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1D218A
RGB	rgb(29, 33, 138)
HSL	hsl(238, 65%, 33%)
HSV	hsv(238, 79%, 54%)
CMYK	cmyk(79%, 76.1%, 0%, 45.9%)
CIE-LAB	lab(20.76, 36.52, -58.02)
CIE-LCH	lch(20.76, 68.56, 302.18°)
OKLab	oklab(33.23% 0.0033 -0.168)
OKLCH	oklch(33.23% 0.168 271.1)
XYZ	xyz(5.6364, 3.1833, 24.3572)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D218A #8A861D

analogous

#1D588A #1D218A #4F1D8A

triadic

#1D218A #8A1D21 #218A1D

tetradic

#1D218A #8A1D58 #8A861D #1D8A4F

square

#1D218A #8A1D58 #8A861D #1D8A4F

split-complementary

#1D218A #8A4F1D #588A1D

monochromatic

#080925 #121557 #1D218A #282DBD #494ED9

Accessibility & contrast

On white

12.83

#1D218A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1D218A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D218A

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D218A	#FFFFFF	#000000	##FFFFFF
##1D218A	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378D

Deuteranopia (green-blind)

#002D88

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d218a;
/* rgb */ color: rgb(29, 33, 138);
/* oklch */ color: oklch(33.2% 0.168 271.1);

Tailwind

colors: {
  custom: {
    50: '#6d5dad',
    500: '#1d218a',
    950: '#000000',
  },
}

SCSS

$custom: #1d218a;
$custom-light: #6d5dad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d218a",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 138
  },
  "hsl": {
    "h": 237.798,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33233,
    "c": 0.16804,
    "h": 271.1
  },
  "luminance": 0.03184
}

Semantic roles & 50–950 ramp

primary

#1D218A

secondary

#BBB748

accent

#E240E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D218A

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

Preview Lab → · Contrast checker → · Palette generator →