#3A21BA#3A21BA

#3A21BA is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.5% C 0.218 H 277.8°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#3A21BA
RGB	rgb(58, 33, 186)
HSL	hsl(250, 70%, 43%)
HSV	hsv(250, 82%, 73%)
CMYK	cmyk(68.8%, 82.3%, 0%, 27.1%)
CIE-LAB	lab(28.20, 54.25, -74.87)
CIE-LCH	lch(28.20, 92.45, 305.93°)
OKLab	oklab(40.54% 0.0296 -0.2163)
OKLCH	oklch(40.54% 0.218 277.8)
XYZ	xyz(11.1488, 5.5314, 46.9250)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A21BA #A1BA21

analogous

#2154BA #3A21BA #8621BA

triadic

#3A21BA #BA3A21 #21BA3A

tetradic

#3A21BA #BA2154 #A1BA21 #21BA86

square

#3A21BA #BA2154 #A1BA21 #21BA86

split-complementary

#3A21BA #BA8621 #54BA21

monochromatic

#1A0F52 #2A1886 #3A21BA #563CDC #8370E6

Accessibility & contrast

On white

9.97

#3A21BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3A21BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A21BA

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A21BA	#FFFFFF	#000000	##FFFFFF
##3A21BA	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BE

Deuteranopia (green-blind)

#003CB7

Tritanopia (blue-blind)

#00516F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3a21ba;
/* rgb */ color: rgb(58, 33, 186);
/* oklch */ color: oklch(40.5% 0.218 277.8);

Tailwind

colors: {
  custom: {
    50: '#8362d0',
    500: '#3a21ba',
    950: '#000000',
  },
}

SCSS

$custom: #3a21ba;
$custom-light: #8362d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a21ba",
  "rgb": {
    "r": 58,
    "g": 33,
    "b": 186
  },
  "hsl": {
    "h": 249.804,
    "s": 69.863,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40543,
    "c": 0.21829,
    "h": 277.8
  },
  "luminance": 0.05532
}

Semantic roles & 50–950 ramp

primary

#3A21BA

secondary

#BCCC6B

accent

#ED3BD0

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #3A21BA

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

Preview Lab → · Contrast checker → · Palette generator →