#3F337F#3F337F

#3F337F is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.123 H 286.1°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F337F
RGB	rgb(63, 51, 127)
HSL	hsl(249, 43%, 35%)
HSV	hsv(249, 60%, 50%)
CMYK	cmyk(50.4%, 59.8%, 0%, 50.2%)
CIE-LAB	lab(26.61, 26.55, -41.46)
CIE-LCH	lch(26.61, 49.23, 302.63°)
OKLab	oklab(37.83% 0.0343 -0.1185)
OKLCH	oklch(37.83% 0.123 286.1)
XYZ	xyz(7.0634, 4.9564, 20.6591)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F337F #737F33

analogous

#334D7F #3F337F #65337F

triadic

#3F337F #7F3F33 #337F3F

tetradic

#3F337F #7F334D #737F33 #337F65

square

#3F337F #7F334D #737F33 #337F65

split-complementary

#3F337F #7F6533 #4D7F33

monochromatic

#141028 #292153 #3F337F #5545AB #7869C3

Accessibility & contrast

On white

10.55

#3F337F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#3F337F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F337F

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F337F	#FFFFFF	#000000	##FFFFFF
##3F337F	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004182

Deuteranopia (green-blind)

#003D7D

Tritanopia (blue-blind)

#294454

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3f337f;
/* rgb */ color: rgb(63, 51, 127);
/* oklch */ color: oklch(37.8% 0.123 286.1);

Tailwind

colors: {
  custom: {
    50: '#796ba5',
    500: '#3f337f',
    950: '#000000',
  },
}

SCSS

$custom: #3f337f;
$custom-light: #796ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f337f",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 127
  },
  "hsl": {
    "h": 249.474,
    "s": 42.697,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37832,
    "c": 0.12333,
    "h": 286.1
  },
  "luminance": 0.04957
}

Semantic roles & 50–950 ramp

primary

#3F337F

secondary

#9FAB63

accent

#D255BF

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #3F337F

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

Preview Lab → · Contrast checker → · Palette generator →