#3A21B4#3A21B4

#3A21B4 is a dark, highly saturated violet. Relative luminance 0.053; OKLCH L 39.9% C 0.211 H 278.6°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#3A21B4
RGB	rgb(58, 33, 180)
HSL	hsl(250, 69%, 42%)
HSV	hsv(250, 82%, 71%)
CMYK	cmyk(67.8%, 81.7%, 0%, 29.4%)
CIE-LAB	lab(27.52, 52.50, -72.42)
CIE-LCH	lch(27.52, 89.45, 305.94°)
OKLab	oklab(39.88% 0.0315 -0.2091)
OKLCH	oklch(39.88% 0.212 278.6)
XYZ	xyz(10.5243, 5.2816, 43.6360)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A21B4 #9BB421

analogous

#2152B4 #3A21B4 #8421B4

triadic

#3A21B4 #B43A21 #21B43A

tetradic

#3A21B4 #B42152 #9BB421 #21B484

square

#3A21B4 #B42152 #9BB421 #21B484

split-complementary

#3A21B4 #B48421 #52B421

monochromatic

#190E4D #291880 #3A21B4 #5338DA #806BE4

Accessibility & contrast

On white

10.21

#3A21B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#3A21B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A21B4

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A21B4	#FFFFFF	#000000	##FFFFFF
##3A21B4	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B8

Deuteranopia (green-blind)

#003BB1

Tritanopia (blue-blind)

#004F6C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3a21b4;
/* rgb */ color: rgb(58, 33, 180);
/* oklch */ color: oklch(39.9% 0.211 278.6);

Tailwind

colors: {
  custom: {
    50: '#8262cc',
    500: '#3a21b4',
    950: '#000000',
  },
}

SCSS

$custom: #3a21b4;
$custom-light: #8262cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a21b4",
  "rgb": {
    "r": 58,
    "g": 33,
    "b": 180
  },
  "hsl": {
    "h": 250.204,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.3988,
    "c": 0.2115,
    "h": 278.6
  },
  "luminance": 0.05283
}

Semantic roles & 50–950 ramp

primary

#3A21B4

secondary

#B9CA67

accent

#EC3CCE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0514

muted

#7D7A82

Preview Lab

Preview with #3A21B4

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

Preview Lab → · Contrast checker → · Palette generator →