#1D218C#1D218C

#1D218C is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.171 H 271.0°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#1D218C
RGB	rgb(29, 33, 140)
HSL	hsl(238, 66%, 33%)
HSV	hsv(238, 79%, 55%)
CMYK	cmyk(79.3%, 76.4%, 0%, 45.1%)
CIE-LAB	lab(20.99, 37.23, -58.90)
CIE-LCH	lch(20.99, 69.68, 302.29°)
OKLab	oklab(33.46% 0.0029 -0.1706)
OKLCH	oklch(33.46% 0.171 271)
XYZ	xyz(5.7826, 3.2417, 25.1268)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D218C #8C881D

analogous

#1D588C #1D218C #501D8C

triadic

#1D218C #8C1D21 #218C1D

tetradic

#1D218C #8C1D58 #8C881D #1D8C50

square

#1D218C #8C1D58 #8C881D #1D8C50

split-complementary

#1D218C #8C501D #588C1D

monochromatic

#080927 #121559 #1D218C #282DBF #4A4FD9

Accessibility & contrast

On white

12.74

#1D218C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1D218C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D218C

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D218C	#FFFFFF	#000000	##FFFFFF
##1D218C	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388F

Deuteranopia (green-blind)

#002D8A

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d218c;
/* rgb */ color: rgb(29, 33, 140);
/* oklch */ color: oklch(33.5% 0.171 271.0);

Tailwind

colors: {
  custom: {
    50: '#6e5eaf',
    500: '#1d218c',
    950: '#000000',
  },
}

SCSS

$custom: #1d218c;
$custom-light: #6e5eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#1d218c",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 140
  },
  "hsl": {
    "h": 237.838,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33458,
    "c": 0.17059,
    "h": 271
  },
  "luminance": 0.03242
}

Semantic roles & 50–950 ramp

primary

#1D218C

secondary

#BCB849

accent

#E33FE9

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D218C

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

Preview Lab → · Contrast checker → · Palette generator →