#21388E#21388E

#21388E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.0% C 0.145 H 267.4°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#21388E
RGB	rgb(33, 56, 142)
HSL	hsl(227, 62%, 34%)
HSV	hsv(227, 77%, 56%)
CMYK	cmyk(76.8%, 60.6%, 0%, 44.3%)
CIE-LAB	lab(27.03, 23.34, -50.22)
CIE-LCH	lch(27.03, 55.38, 294.92°)
OKLab	oklab(37.98% -0.0065 -0.145)
OKLCH	oklch(37.98% 0.145 267.4)
XYZ	xyz(6.9222, 5.1039, 26.2063)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21388E #8E7721

analogous

#216F8E #21388E #40218E

triadic

#21388E #8E2138 #388E21

tetradic

#21388E #8E216F #8E7721 #218E40

square

#21388E #8E216F #8E7721 #218E40

split-complementary

#21388E #8E4021 #6F8E21

monochromatic

#0A112B #15245C #21388E #2D4CC0 #526ED7

Accessibility & contrast

On white

10.39

#21388E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#21388E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21388E

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21388E	#FFFFFF	#000000	##FFFFFF
##21388E	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004591

Deuteranopia (green-blind)

#003B8C

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21388e;
/* rgb */ color: rgb(33, 56, 142);
/* oklch */ color: oklch(38.0% 0.145 267.4);

Tailwind

colors: {
  custom: {
    50: '#6e6eb0',
    500: '#21388e',
    950: '#000000',
  },
}

SCSS

$custom: #21388e;
$custom-light: #6e6eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#21388e",
  "rgb": {
    "r": 33,
    "g": 56,
    "b": 142
  },
  "hsl": {
    "h": 227.339,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37978,
    "c": 0.14514,
    "h": 267.4
  },
  "luminance": 0.05105
}

Semantic roles & 50–950 ramp

primary

#21388E

secondary

#BAA450

accent

#C342E5

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #21388E

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

Preview Lab → · Contrast checker → · Palette generator →