#21398E#21398E

#21398E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.2% C 0.144 H 267.1°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#21398E
RGB	rgb(33, 57, 142)
HSL	hsl(227, 62%, 34%)
HSV	hsv(227, 77%, 56%)
CMYK	cmyk(76.8%, 59.9%, 0%, 44.3%)
CIE-LAB	lab(27.30, 22.65, -49.77)
CIE-LCH	lch(27.30, 54.68, 294.47°)
OKLab	oklab(38.18% -0.0072 -0.1437)
OKLCH	oklch(38.18% 0.144 267.1)
XYZ	xyz(6.9711, 5.2018, 26.2226)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21398E #8E7621

analogous

#21708E #21398E #40218E

triadic

#21398E #8E2139 #398E21

tetradic

#21398E #8E2170 #8E7621 #218E40

square

#21398E #8E2170 #8E7621 #218E40

split-complementary

#21398E #8E4021 #708E21

monochromatic

#0A112B #15255C #21398E #2D4DC0 #5270D7

Accessibility & contrast

On white

10.29

#21398E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#21398E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21398E

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21398E	#FFFFFF	#000000	##FFFFFF
##21398E	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004691

Deuteranopia (green-blind)

#003C8C

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21398e;
/* rgb */ color: rgb(33, 57, 142);
/* oklch */ color: oklch(38.2% 0.144 267.1);

Tailwind

colors: {
  custom: {
    50: '#6e6fb0',
    500: '#21398e',
    950: '#000000',
  },
}

SCSS

$custom: #21398e;
$custom-light: #6e6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#21398e",
  "rgb": {
    "r": 33,
    "g": 57,
    "b": 142
  },
  "hsl": {
    "h": 226.789,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38182,
    "c": 0.14386,
    "h": 267.1
  },
  "luminance": 0.05203
}

Semantic roles & 50–950 ramp

primary

#21398E

secondary

#BAA350

accent

#C142E5

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #21398E

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

Preview Lab → · Contrast checker → · Palette generator →