#21398C#21398C

#21398C is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.0% C 0.141 H 267.0°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#21398C
RGB	rgb(33, 57, 140)
HSL	hsl(227, 62%, 34%)
HSV	hsv(227, 76%, 55%)
CMYK	cmyk(76.4%, 59.3%, 0%, 45.1%)
CIE-LAB	lab(27.14, 21.86, -48.81)
CIE-LCH	lch(27.14, 53.48, 294.13°)
OKLab	oklab(38.01% -0.0073 -0.1408)
OKLCH	oklch(38.01% 0.141 267)
XYZ	xyz(6.8223, 5.1423, 25.4389)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21398C #8C7421

analogous

#216F8C #21398C #3F218C

triadic

#21398C #8C2139 #398C21

tetradic

#21398C #8C216F #8C7421 #218C3F

square

#21398C #8C216F #8C7421 #218C3F

split-complementary

#21398C #8C3F21 #6F8C21

monochromatic

#0A1129 #15255A #21398C #2D4DBE #516FD6

Accessibility & contrast

On white

10.35

#21398C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#21398C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21398C

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21398C	#FFFFFF	#000000	##FFFFFF
##21398C	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458F

Deuteranopia (green-blind)

#003B8A

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21398c;
/* rgb */ color: rgb(33, 57, 140);
/* oklch */ color: oklch(38.0% 0.141 267.0);

Tailwind

colors: {
  custom: {
    50: '#6d6fae',
    500: '#21398c',
    950: '#000000',
  },
}

SCSS

$custom: #21398c;
$custom-light: #6d6fae;
$custom-dark: #000000;

JSON

{
  "hex": "#21398c",
  "rgb": {
    "r": 33,
    "g": 57,
    "b": 140
  },
  "hsl": {
    "h": 226.542,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38006,
    "c": 0.14103,
    "h": 267
  },
  "luminance": 0.05143
}

Semantic roles & 50–950 ramp

primary

#21398C

secondary

#B9A24F

accent

#C143E5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #21398C

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

Preview Lab → · Contrast checker → · Palette generator →