#1D218B#1D218B

#1D218B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.3% C 0.169 H 271.1°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D218B
RGB	rgb(29, 33, 139)
HSL	hsl(238, 65%, 33%)
HSV	hsv(238, 79%, 55%)
CMYK	cmyk(79.1%, 76.3%, 0%, 45.5%)
CIE-LAB	lab(20.88, 36.87, -58.46)
CIE-LCH	lch(20.88, 69.12, 302.24°)
OKLab	oklab(33.35% 0.0031 -0.1693)
OKLCH	oklch(33.35% 0.169 271.1)
XYZ	xyz(5.7092, 3.2124, 24.7403)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D218B #8B871D

analogous

#1D588B #1D218B #501D8B

triadic

#1D218B #8B1D21 #218B1D

tetradic

#1D218B #8B1D58 #8B871D #1D8B50

square

#1D218B #8B1D58 #8B871D #1D8B50

split-complementary

#1D218B #8B501D #588B1D

monochromatic

#080926 #121558 #1D218B #282DBE #494FD9

Accessibility & contrast

On white

12.78

#1D218B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1D218B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D218B

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D218B	#FFFFFF	#000000	##FFFFFF
##1D218B	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388E

Deuteranopia (green-blind)

#002D89

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d218b;
/* rgb */ color: rgb(29, 33, 139);
/* oklch */ color: oklch(33.3% 0.169 271.1);

Tailwind

colors: {
  custom: {
    50: '#6e5dae',
    500: '#1d218b',
    950: '#000000',
  },
}

SCSS

$custom: #1d218b;
$custom-light: #6e5dae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d218b",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 139
  },
  "hsl": {
    "h": 237.818,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33345,
    "c": 0.16932,
    "h": 271.1
  },
  "luminance": 0.03213
}

Semantic roles & 50–950 ramp

primary

#1D218B

secondary

#BBB749

accent

#E23FE8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D218B

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

Preview Lab → · Contrast checker → · Palette generator →