#3F2F91#3F2F91

#3F2F91 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.7% C 0.154 H 284.0°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F2F91
RGB	rgb(63, 47, 145)
HSL	hsl(250, 51%, 38%)
HSV	hsv(250, 68%, 57%)
CMYK	cmyk(56.6%, 67.6%, 0%, 43.1%)
CIE-LAB	lab(27.11, 34.89, -51.85)
CIE-LCH	lch(27.11, 62.49, 303.94°)
OKLab	oklab(38.65% 0.0373 -0.149)
OKLCH	oklch(38.65% 0.154 284)
XYZ	xyz(8.1757, 5.1336, 27.3427)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2F91 #81912F

analogous

#2F5091 #3F2F91 #702F91

triadic

#3F2F91 #913F2F #2F913F

tetradic

#3F2F91 #912F50 #81912F #2F9170

square

#3F2F91 #912F50 #81912F #2F9170

split-complementary

#3F2F91 #91702F #50912F

monochromatic

#171135 #2B2063 #3F2F91 #533EBF #7C6BCF

Accessibility & contrast

On white

10.36

#3F2F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3F2F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2F91

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2F91	#FFFFFF	#000000	##FFFFFF
##3F2F91	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004394

Deuteranopia (green-blind)

#003D8F

Tritanopia (blue-blind)

#19485C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f2f91;
/* rgb */ color: rgb(63, 47, 145);
/* oklch */ color: oklch(38.7% 0.154 284.0);

Tailwind

colors: {
  custom: {
    50: '#7d69b2',
    500: '#3f2f91',
    950: '#000000',
  },
}

SCSS

$custom: #3f2f91;
$custom-light: #7d69b2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2f91",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 145
  },
  "hsl": {
    "h": 249.796,
    "s": 51.042,
    "l": 37.647
  },
  "oklch": {
    "l": 0.38654,
    "c": 0.15362,
    "h": 284
  },
  "luminance": 0.05134
}

Semantic roles & 50–950 ramp

primary

#3F2F91

secondary

#A9B665

accent

#DB4DC3

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #3F2F91

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

Preview Lab → · Contrast checker → · Palette generator →