#3F2FB0#3F2FB0

#3F2FB0 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.6% C 0.193 H 279.5°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FB0
RGB	rgb(63, 47, 176)
HSL	hsl(247, 58%, 44%)
HSV	hsv(247, 73%, 69%)
CMYK	cmyk(64.2%, 73.3%, 0%, 31%)
CIE-LAB	lab(29.97, 44.78, -65.97)
CIE-LCH	lch(29.97, 79.74, 304.17°)
OKLab	oklab(41.57% 0.0318 -0.1904)
OKLCH	oklch(41.57% 0.193 279.5)
XYZ	xyz(10.9004, 6.2235, 41.6927)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2FB0 #A0B02F

analogous

#2F5FB0 #3F2FB0 #7F2FB0

triadic

#3F2FB0 #B03F2F #2FB03F

tetradic

#3F2FB0 #B02F5F #A0B02F #2FB07F

square

#3F2FB0 #B02F5F #A0B02F #2FB07F

split-complementary

#3F2FB0 #B07F2F #5FB02F

monochromatic

#1C154F #2E2280 #3F2FB0 #5D4DCF #897DDC

Accessibility & contrast

On white

9.35

#3F2FB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#3F2FB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FB0

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FB0	#FFFFFF	#000000	##FFFFFF
##3F2FB0	1.00	9.35	2.24	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB4

Deuteranopia (green-blind)

#0041AE

Tritanopia (blue-blind)

#00536D

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f2fb0;
/* rgb */ color: rgb(63, 47, 176);
/* oklch */ color: oklch(41.6% 0.193 279.5);

Tailwind

colors: {
  custom: {
    50: '#836ac9',
    500: '#3f2fb0',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fb0;
$custom-light: #836ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fb0",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 176
  },
  "hsl": {
    "h": 247.442,
    "s": 57.848,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41573,
    "c": 0.19304,
    "h": 279.5
  },
  "luminance": 0.06224
}

Semantic roles & 50–950 ramp

primary

#3F2FB0

secondary

#BBC576

accent

#E147CE

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3F2FB0

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

Preview Lab → · Contrast checker → · Palette generator →