#3F2FA4#3F2FA4

#3F2FA4 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.4% C 0.178 H 281.1°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FA4
RGB	rgb(63, 47, 164)
HSL	hsl(248, 55%, 41%)
HSV	hsv(248, 71%, 64%)
CMYK	cmyk(61.6%, 71.3%, 0%, 35.7%)
CIE-LAB	lab(28.82, 40.98, -60.65)
CIE-LCH	lch(28.82, 73.19, 304.05°)
OKLab	oklab(40.41% 0.0342 -0.1748)
OKLCH	oklch(40.41% 0.178 281.1)
XYZ	xyz(9.7651, 5.7694, 35.7138)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.31

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2FA4 #94A42F

analogous

#2F5AA4 #3F2FA4 #7A2FA4

triadic

#3F2FA4 #A43F2F #2FA43F

tetradic

#3F2FA4 #A42F5A #94A42F #2FA47A

square

#3F2FA4 #A42F5A #94A42F #2FA47A

split-complementary

#3F2FA4 #A47A2F #5AA42F

monochromatic

#1A1445 #2D2174 #3F2FA4 #5846CA #8376D8

Accessibility & contrast

On white

9.75

#3F2FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3F2FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FA4

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FA4	#FFFFFF	#000000	##FFFFFF
##3F2FA4	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3f2fa4;
/* rgb */ color: rgb(63, 47, 164);
/* oklch */ color: oklch(40.4% 0.178 281.1);

Tailwind

colors: {
  custom: {
    50: '#8069c0',
    500: '#3f2fa4',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fa4;
$custom-light: #8069c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fa4",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 164
  },
  "hsl": {
    "h": 248.205,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.40409,
    "c": 0.17813,
    "h": 281.1
  },
  "luminance": 0.0577
}

Semantic roles & 50–950 ramp

primary

#3F2FA4

secondary

#B5C06F

accent

#DF49CA

background

#F8F6FB

surface

#F0EBF7

border

#CBC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3F2FA4

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

Preview Lab → · Contrast checker → · Palette generator →