#3F308F#3F308F

#3F308F is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.6% C 0.150 H 284.1°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#3F308F
RGB	rgb(63, 48, 143)
HSL	hsl(249, 50%, 37%)
HSV	hsv(249, 66%, 56%)
CMYK	cmyk(55.9%, 66.4%, 0%, 43.9%)
CIE-LAB	lab(27.17, 33.63, -50.52)
CIE-LCH	lch(27.17, 60.69, 303.65°)
OKLab	oklab(38.64% 0.0365 -0.1451)
OKLCH	oklch(38.64% 0.15 284.1)
XYZ	xyz(8.0633, 5.1534, 26.5511)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F308F #808F30

analogous

#30508F #3F308F #6F308F

triadic

#3F308F #8F3F30 #308F3F

tetradic

#3F308F #8F3050 #808F30 #308F6F

square

#3F308F #8F3050 #808F30 #308F6F

split-complementary

#3F308F #8F6F30 #508F30

monochromatic

#171133 #2B2161 #3F308F #533FBD #7B6CCE

Accessibility & contrast

On white

10.34

#3F308F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3F308F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F308F

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F308F	#FFFFFF	#000000	##FFFFFF
##3F308F	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004392

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#1B485B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f308f;
/* rgb */ color: rgb(63, 48, 143);
/* oklch */ color: oklch(38.6% 0.150 284.1);

Tailwind

colors: {
  custom: {
    50: '#7c69b1',
    500: '#3f308f',
    950: '#000000',
  },
}

SCSS

$custom: #3f308f;
$custom-light: #7c69b1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f308f",
  "rgb": {
    "r": 63,
    "g": 48,
    "b": 143
  },
  "hsl": {
    "h": 249.474,
    "s": 49.738,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38641,
    "c": 0.14967,
    "h": 284.1
  },
  "luminance": 0.05154
}

Semantic roles & 50–950 ramp

primary

#3F308F

secondary

#A8B566

accent

#D94FC3

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #3F308F

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

Preview Lab → · Contrast checker → · Palette generator →