#21218B#21218B

#21218B is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.6% C 0.168 H 272.7°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#21218B
RGB	rgb(33, 33, 139)
HSL	hsl(240, 62%, 34%)
HSV	hsv(240, 76%, 55%)
CMYK	cmyk(76.3%, 76.3%, 0%, 45.5%)
CIE-LAB	lab(21.11, 37.22, -58.07)
CIE-LCH	lch(21.11, 68.97, 302.66°)
OKLab	oklab(33.58% 0.0078 -0.168)
OKLCH	oklch(33.58% 0.168 272.7)
XYZ	xyz(5.8297, 3.2745, 24.7459)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21218B #8B8B21

analogous

#21568B #21218B #56218B

triadic

#21218B #8B2121 #218B21

tetradic

#21218B #8B2156 #8B8B21 #218B56

square

#21218B #8B2156 #8B8B21 #218B56

split-complementary

#21218B #8B5621 #568B21

monochromatic

#0A0A28 #15155A #21218B #2D2DBC #5151D6

Accessibility & contrast

On white

12.69

#21218B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#21218B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21218B

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21218B	#FFFFFF	#000000	##FFFFFF
##21218B	1.00	12.69	1.66	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388E

Deuteranopia (green-blind)

#002D89

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #21218b;
/* rgb */ color: rgb(33, 33, 139);
/* oklch */ color: oklch(33.6% 0.168 272.7);

Tailwind

colors: {
  custom: {
    50: '#6f5eae',
    500: '#21218b',
    950: '#000000',
  },
}

SCSS

$custom: #21218b;
$custom-light: #6f5eae;
$custom-dark: #000000;

JSON

{
  "hex": "#21218b",
  "rgb": {
    "r": 33,
    "g": 33,
    "b": 139
  },
  "hsl": {
    "h": 240,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.33577,
    "c": 0.16822,
    "h": 272.7
  },
  "luminance": 0.03275
}

Semantic roles & 50–950 ramp

primary

#21218B

secondary

#B9B94F

accent

#E543E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #21218B

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

Preview Lab → · Contrast checker → · Palette generator →