#21339A#21339A

#21339A is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.1% C 0.168 H 268.8°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#21339A
RGB	rgb(33, 51, 154)
HSL	hsl(231, 65%, 37%)
HSV	hsv(231, 79%, 60%)
CMYK	cmyk(78.6%, 66.9%, 0%, 39.6%)
CIE-LAB	lab(26.80, 31.32, -57.96)
CIE-LCH	lch(26.80, 65.88, 298.38°)
OKLab	oklab(38.14% -0.0035 -0.1677)
OKLCH	oklch(38.14% 0.168 268.8)
XYZ	xyz(7.6417, 5.0232, 31.1324)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21339A #9A8821

analogous

#21709A #21339A #4B219A

triadic

#21339A #9A2133 #339A21

tetradic

#21339A #9A2170 #9A8821 #219A4B

square

#21339A #9A2170 #9A8821 #219A4B

split-complementary

#21339A #9A4B21 #709A21

monochromatic

#0B1235 #162268 #21339A #2C44CC #5A6DDC

Accessibility & contrast

On white

10.47

#21339A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#21339A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21339A

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21339A	#FFFFFF	#000000	##FFFFFF
##21339A	1.00	10.47	2.00	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459D

Deuteranopia (green-blind)

#003A98

Tritanopia (blue-blind)

#004F62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #21339a;
/* rgb */ color: rgb(33, 51, 154);
/* oklch */ color: oklch(38.1% 0.168 268.8);

Tailwind

colors: {
  custom: {
    50: '#716ab9',
    500: '#21339a',
    950: '#000000',
  },
}

SCSS

$custom: #21339a;
$custom-light: #716ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#21339a",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 154
  },
  "hsl": {
    "h": 231.074,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38141,
    "c": 0.16779,
    "h": 268.8
  },
  "luminance": 0.05024
}

Semantic roles & 50–950 ramp

primary

#21339A

secondary

#C0B057

accent

#CF40E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #21339A

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

Preview Lab → · Contrast checker → · Palette generator →