#21338C#21338C

#21338C is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.149 H 268.9°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#21338C
RGB	rgb(33, 51, 140)
HSL	hsl(230, 62%, 34%)
HSV	hsv(230, 76%, 55%)
CMYK	cmyk(76.4%, 63.6%, 0%, 45.1%)
CIE-LAB	lab(25.51, 25.98, -51.45)
CIE-LCH	lch(25.51, 57.64, 296.79°)
OKLab	oklab(36.8% -0.0029 -0.1487)
OKLCH	oklch(36.8% 0.149 268.9)
XYZ	xyz(6.5430, 4.5837, 25.3458)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21338C #8C7A21

analogous

#21698C #21338C #45218C

triadic

#21338C #8C2133 #338C21

tetradic

#21338C #8C2169 #8C7A21 #218C45

square

#21338C #8C2169 #8C7A21 #218C45

split-complementary

#21338C #8C4521 #698C21

monochromatic

#0A0F29 #15215A #21338C #2D45BE #5168D6

Accessibility & contrast

On white

10.96

#21338C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#21338C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21338C

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21338C	#FFFFFF	#000000	##FFFFFF
##21338C	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428F

Deuteranopia (green-blind)

#00388A

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #21338c;
/* rgb */ color: rgb(33, 51, 140);
/* oklch */ color: oklch(36.8% 0.149 268.9);

Tailwind

colors: {
  custom: {
    50: '#6e6aae',
    500: '#21338c',
    950: '#000000',
  },
}

SCSS

$custom: #21338c;
$custom-light: #6e6aae;
$custom-dark: #000000;

JSON

{
  "hex": "#21338c",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 140
  },
  "hsl": {
    "h": 229.907,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.368,
    "c": 0.14872,
    "h": 268.9
  },
  "luminance": 0.04584
}

Semantic roles & 50–950 ramp

primary

#21338C

secondary

#B9A84F

accent

#CA43E5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #21338C

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

Preview Lab → · Contrast checker → · Palette generator →