#21398F#21398F

#21398F is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.145 H 267.2°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#21398F
RGB	rgb(33, 57, 143)
HSL	hsl(227, 63%, 35%)
HSV	hsv(227, 77%, 56%)
CMYK	cmyk(76.9%, 60.1%, 0%, 43.9%)
CIE-LAB	lab(27.39, 23.04, -50.26)
CIE-LCH	lch(27.39, 55.28, 294.63°)
OKLab	oklab(38.27% -0.0072 -0.1451)
OKLCH	oklch(38.27% 0.145 267.2)
XYZ	xyz(7.0465, 5.2320, 26.6198)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21398F #8F7721

analogous

#21708F #21398F #40218F

triadic

#21398F #8F2139 #398F21

tetradic

#21398F #8F2170 #8F7721 #218F40

square

#21398F #8F2170 #8F7721 #218F40

split-complementary

#21398F #8F4021 #708F21

monochromatic

#0A112C #16255D #21398F #2C4DC1 #5370D7

Accessibility & contrast

On white

10.26

#21398F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#21398F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21398F

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21398F	#FFFFFF	#000000	##FFFFFF
##21398F	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004692

Deuteranopia (green-blind)

#003C8D

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #21398f;
/* rgb */ color: rgb(33, 57, 143);
/* oklch */ color: oklch(38.3% 0.145 267.2);

Tailwind

colors: {
  custom: {
    50: '#6e6fb1',
    500: '#21398f',
    950: '#000000',
  },
}

SCSS

$custom: #21398f;
$custom-light: #6e6fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#21398f",
  "rgb": {
    "r": 33,
    "g": 57,
    "b": 143
  },
  "hsl": {
    "h": 226.909,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38271,
    "c": 0.14527,
    "h": 267.2
  },
  "luminance": 0.05233
}

Semantic roles & 50–950 ramp

primary

#21398F

secondary

#BBA451

accent

#C242E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #21398F

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

Preview Lab → · Contrast checker → · Palette generator →