#21379F#21379F

#21379F is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.4% C 0.170 H 268.0°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#21379F
RGB	rgb(33, 55, 159)
HSL	hsl(230, 66%, 38%)
HSV	hsv(230, 79%, 62%)
CMYK	cmyk(79.2%, 65.4%, 0%, 37.6%)
CIE-LAB	lab(28.27, 30.56, -58.60)
CIE-LCH	lch(28.27, 66.09, 297.54°)
OKLab	oklab(39.36% -0.006 -0.1696)
OKLCH	oklch(39.36% 0.17 268)
XYZ	xyz(8.2492, 5.5580, 33.4322)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21379F #9F8921

analogous

#21769F #21379F #4A219F

triadic

#21379F #9F2137 #379F21

tetradic

#21379F #9F2176 #9F8921 #219F4A

square

#21379F #9F2176 #9F8921 #219F4A

split-complementary

#21379F #9F4A21 #769F21

monochromatic

#0C143A #16256C #21379F #2C49D2 #5D73DD

Accessibility & contrast

On white

9.94

#21379F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#21379F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21379F

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21379F	#FFFFFF	#000000	##FFFFFF
##21379F	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A2

Deuteranopia (green-blind)

#003D9D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #21379f;
/* rgb */ color: rgb(33, 55, 159);
/* oklch */ color: oklch(39.4% 0.170 268.0);

Tailwind

colors: {
  custom: {
    50: '#726dbc',
    500: '#21379f',
    950: '#000000',
  },
}

SCSS

$custom: #21379f;
$custom-light: #726dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#21379f",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 159
  },
  "hsl": {
    "h": 229.524,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.3936,
    "c": 0.16969,
    "h": 268
  },
  "luminance": 0.05559
}

Semantic roles & 50–950 ramp

primary

#21379F

secondary

#C2B05A

accent

#CB3FE9

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #21379F

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

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