#21218C#21218C

#21218C is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.7% C 0.170 H 272.6°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#21218C
RGB	rgb(33, 33, 140)
HSL	hsl(240, 62%, 34%)
HSV	hsv(240, 76%, 55%)
CMYK	cmyk(76.4%, 76.4%, 0%, 45.1%)
CIE-LAB	lab(21.22, 37.57, -58.51)
CIE-LCH	lch(21.22, 69.53, 302.70°)
OKLab	oklab(33.69% 0.0076 -0.1693)
OKLCH	oklch(33.69% 0.17 272.6)
XYZ	xyz(5.9031, 3.3039, 25.1325)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21218C #8C8C21

analogous

#21578C #21218C #57218C

triadic

#21218C #8C2121 #218C21

tetradic

#21218C #8C2157 #8C8C21 #218C57

square

#21218C #8C2157 #8C8C21 #218C57

split-complementary

#21218C #8C5721 #578C21

monochromatic

#0A0A29 #15155A #21218C #2D2DBE #5151D6

Accessibility & contrast

On white

12.64

#21218C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#21218C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21218C

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21218C	#FFFFFF	#000000	##FFFFFF
##21218C	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388F

Deuteranopia (green-blind)

#002E8A

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #21218c;
/* rgb */ color: rgb(33, 33, 140);
/* oklch */ color: oklch(33.7% 0.170 272.6);

Tailwind

colors: {
  custom: {
    50: '#6f5eaf',
    500: '#21218c',
    950: '#000000',
  },
}

SCSS

$custom: #21218c;
$custom-light: #6f5eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#21218c",
  "rgb": {
    "r": 33,
    "g": 33,
    "b": 140
  },
  "hsl": {
    "h": 240,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.33688,
    "c": 0.1695,
    "h": 272.6
  },
  "luminance": 0.03304
}

Semantic roles & 50–950 ramp

primary

#21218C

secondary

#B9B94F

accent

#E543E5

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #21218C

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

Preview Lab → · Contrast checker → · Palette generator →