#1D218D#1D218D

#1D218D is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.6% C 0.172 H 270.9°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#1D218D
RGB	rgb(29, 33, 141)
HSL	hsl(238, 66%, 33%)
HSV	hsv(238, 79%, 55%)
CMYK	cmyk(79.4%, 76.6%, 0%, 44.7%)
CIE-LAB	lab(21.10, 37.58, -59.34)
CIE-LCH	lch(21.10, 70.24, 302.34°)
OKLab	oklab(33.57% 0.0028 -0.1718)
OKLCH	oklch(33.57% 0.172 270.9)
XYZ	xyz(5.8566, 3.2714, 25.5169)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D218D #8D891D

analogous

#1D598D #1D218D #511D8D

triadic

#1D218D #8D1D21 #218D1D

tetradic

#1D218D #8D1D59 #8D891D #1D8D51

square

#1D218D #8D1D59 #8D891D #1D8D51

split-complementary

#1D218D #8D511D #598D1D

monochromatic

#080927 #13155A #1D218D #272DC0 #4B50DA

Accessibility & contrast

On white

12.69

#1D218D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1D218D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D218D

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D218D	#FFFFFF	#000000	##FFFFFF
##1D218D	1.00	12.69	1.65	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#002D8B

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1d218d;
/* rgb */ color: rgb(29, 33, 141);
/* oklch */ color: oklch(33.6% 0.172 270.9);

Tailwind

colors: {
  custom: {
    50: '#6e5eb0',
    500: '#1d218d',
    950: '#000000',
  },
}

SCSS

$custom: #1d218d;
$custom-light: #6e5eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d218d",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 141
  },
  "hsl": {
    "h": 237.857,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33571,
    "c": 0.17186,
    "h": 270.9
  },
  "luminance": 0.03272
}

Semantic roles & 50–950 ramp

primary

#1D218D

secondary

#BCB84A

accent

#E33FE9

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #1D218D

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

Preview Lab → · Contrast checker → · Palette generator →