#3F28B2#3F28B2

#3F28B2 is a dark, highly saturated violet. Relative luminance 0.058; OKLCH L 40.9% C 0.202 H 280.2°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F28B2
RGB	rgb(63, 40, 178)
HSL	hsl(250, 63%, 43%)
HSV	hsv(250, 78%, 70%)
CMYK	cmyk(64.6%, 77.5%, 0%, 30.2%)
CIE-LAB	lab(28.87, 49.08, -68.98)
CIE-LCH	lch(28.87, 84.66, 305.43°)
OKLab	oklab(40.86% 0.0357 -0.1991)
OKLCH	oklch(40.86% 0.202 280.2)
XYZ	xyz(10.8420, 5.7878, 42.6567)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F28B2 #9BB228

analogous

#2856B2 #3F28B2 #8428B2

triadic

#3F28B2 #B23F28 #28B23F

tetradic

#3F28B2 #B22856 #9BB228 #28B284

square

#3F28B2 #B22856 #9BB228 #28B284

split-complementary

#3F28B2 #B28428 #56B228

monochromatic

#1C124E #2D1D80 #3F28B2 #5B43D5 #8675E0

Accessibility & contrast

On white

9.73

#3F28B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3F28B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F28B2

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F28B2	#FFFFFF	#000000	##FFFFFF
##3F28B2	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B6

Deuteranopia (green-blind)

#003FB0

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3f28b2;
/* rgb */ color: rgb(63, 40, 178);
/* oklch */ color: oklch(40.9% 0.202 280.2);

Tailwind

colors: {
  custom: {
    50: '#8366ca',
    500: '#3f28b2',
    950: '#000000',
  },
}

SCSS

$custom: #3f28b2;
$custom-light: #8366ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f28b2",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 178
  },
  "hsl": {
    "h": 250,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40859,
    "c": 0.20229,
    "h": 280.2
  },
  "luminance": 0.05789
}

Semantic roles & 50–950 ramp

primary

#3F28B2

secondary

#B8C76F

accent

#E641CB

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3F28B2

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

Preview Lab → · Contrast checker → · Palette generator →