#3A21BD#3A21BD

#3A21BD is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.9% C 0.222 H 277.4°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#3A21BD
RGB	rgb(58, 33, 189)
HSL	hsl(250, 70%, 44%)
HSV	hsv(250, 83%, 74%)
CMYK	cmyk(69.3%, 82.5%, 0%, 25.9%)
CIE-LAB	lab(28.54, 55.11, -76.08)
CIE-LCH	lch(28.54, 93.94, 305.92°)
OKLab	oklab(40.88% 0.0287 -0.2198)
OKLCH	oklch(40.88% 0.222 277.4)
XYZ	xyz(11.4711, 5.6603, 48.6223)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A21BD #A4BD21

analogous

#2156BD #3A21BD #8821BD

triadic

#3A21BD #BD3A21 #21BD3A

tetradic

#3A21BD #BD2156 #A4BD21 #21BD88

square

#3A21BD #BD2156 #A4BD21 #21BD88

split-complementary

#3A21BD #BD8821 #56BD21

monochromatic

#1A0F55 #2A1889 #3A21BD #573EDD #8572E6

Accessibility & contrast

On white

9.85

#3A21BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3A21BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A21BD

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A21BD	#FFFFFF	#000000	##FFFFFF
##3A21BD	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049C1

Deuteranopia (green-blind)

#003DBA

Tritanopia (blue-blind)

#005371

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3a21bd;
/* rgb */ color: rgb(58, 33, 189);
/* oklch */ color: oklch(40.9% 0.222 277.4);

Tailwind

colors: {
  custom: {
    50: '#8462d2',
    500: '#3a21bd',
    950: '#000000',
  },
}

SCSS

$custom: #3a21bd;
$custom-light: #8462d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3a21bd",
  "rgb": {
    "r": 58,
    "g": 33,
    "b": 189
  },
  "hsl": {
    "h": 249.615,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.40877,
    "c": 0.22167,
    "h": 277.4
  },
  "luminance": 0.05661
}

Semantic roles & 50–950 ramp

primary

#3A21BD

secondary

#BECD6D

accent

#ED3BD0

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0D0514

muted

#7D7A83

Preview Lab

Preview with #3A21BD

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

Preview Lab → · Contrast checker → · Palette generator →