#3F2FA0#3F2FA0

#3F2FA0 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.0% C 0.173 H 281.6°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FA0
RGB	rgb(63, 47, 160)
HSL	hsl(248, 55%, 41%)
HSV	hsv(248, 71%, 63%)
CMYK	cmyk(60.6%, 70.6%, 0%, 37.3%)
CIE-LAB	lab(28.45, 39.70, -58.83)
CIE-LCH	lch(28.45, 70.98, 304.01°)
OKLab	oklab(40.03% 0.0349 -0.1695)
OKLCH	oklch(40.03% 0.173 281.6)
XYZ	xyz(9.4096, 5.6272, 33.8412)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.76

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2FA0 #90A02F

analogous

#2F57A0 #3F2FA0 #772FA0

triadic

#3F2FA0 #A03F2F #2FA03F

tetradic

#3F2FA0 #A02F57 #90A02F #2FA077

square

#3F2FA0 #A02F57 #90A02F #2FA077

split-complementary

#3F2FA0 #A0772F #57A02F

monochromatic

#1A1341 #2C2171 #3F2FA0 #5744C8 #8173D6

Accessibility & contrast

On white

9.88

#3F2FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3F2FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FA0

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FA0	#FFFFFF	#000000	##FFFFFF
##3F2FA0	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A3

Deuteranopia (green-blind)

#003F9E

Tritanopia (blue-blind)

#004D64

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3f2fa0;
/* rgb */ color: rgb(63, 47, 160);
/* oklch */ color: oklch(40.0% 0.173 281.6);

Tailwind

colors: {
  custom: {
    50: '#7f69bd',
    500: '#3f2fa0',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fa0;
$custom-light: #7f69bd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fa0",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 160
  },
  "hsl": {
    "h": 248.496,
    "s": 54.589,
    "l": 40.588
  },
  "oklch": {
    "l": 0.4003,
    "c": 0.17307,
    "h": 281.6
  },
  "luminance": 0.05628
}

Semantic roles & 50–950 ramp

primary

#3F2FA0

secondary

#B2BE6D

accent

#DE4AC9

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3F2FA0

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

Preview Lab → · Contrast checker → · Palette generator →