#21399F#21399F

#21399F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.7% C 0.167 H 267.5°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#21399F
RGB	rgb(33, 57, 159)
HSL	hsl(229, 66%, 38%)
HSV	hsv(229, 79%, 62%)
CMYK	cmyk(79.2%, 64.2%, 0%, 37.6%)
CIE-LAB	lab(28.78, 29.23, -57.77)
CIE-LCH	lch(28.78, 64.74, 296.84°)
OKLab	oklab(39.74% -0.0072 -0.1671)
OKLCH	oklch(39.74% 0.167 267.5)
XYZ	xyz(8.3462, 5.7518, 33.4645)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21399F #9F8721

analogous

#21789F #21399F #48219F

triadic

#21399F #9F2139 #399F21

tetradic

#21399F #9F2178 #9F8721 #219F48

square

#21399F #9F2178 #9F8721 #219F48

split-complementary

#21399F #9F4821 #789F21

monochromatic

#0C153A #16276C #21399F #2C4BD2 #5D75DD

Accessibility & contrast

On white

9.76

#21399F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#21399F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21399F

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21399F	#FFFFFF	#000000	##FFFFFF
##21399F	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#003E9D

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #21399f;
/* rgb */ color: rgb(33, 57, 159);
/* oklch */ color: oklch(39.7% 0.167 267.5);

Tailwind

colors: {
  custom: {
    50: '#726fbc',
    500: '#21399f',
    950: '#000000',
  },
}

SCSS

$custom: #21399f;
$custom-light: #726fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#21399f",
  "rgb": {
    "r": 33,
    "g": 57,
    "b": 159
  },
  "hsl": {
    "h": 228.571,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39735,
    "c": 0.16727,
    "h": 267.5
  },
  "luminance": 0.05753
}

Semantic roles & 50–950 ramp

primary

#21399F

secondary

#C2AE5A

accent

#C83FE9

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #21399F

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

Preview Lab → · Contrast checker → · Palette generator →