#3F31C3#3F31C3

#3F31C3 is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.7% C 0.214 H 277.1°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F31C3
RGB	rgb(63, 49, 195)
HSL	hsl(246, 60%, 48%)
HSV	hsv(246, 75%, 76%)
CMYK	cmyk(67.7%, 74.9%, 0%, 23.5%)
CIE-LAB	lab(32.24, 49.65, -73.48)
CIE-LCH	lch(32.24, 88.68, 304.05°)
OKLab	oklab(43.75% 0.0265 -0.2123)
OKLCH	oklch(43.75% 0.214 277.1)
XYZ	xyz(12.9953, 7.1924, 52.3226)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F31C3 #B5C331

analogous

#316CC3 #3F31C3 #8831C3

triadic

#3F31C3 #C33F31 #31C33F

tetradic

#3F31C3 #C3316C #B5C331 #31C388

square

#3F31C3 #C3316C #B5C331 #31C388

split-complementary

#3F31C3 #C38831 #6CC331

monochromatic

#1F1861 #2F2592 #3F31C3 #675BD6 #948CE2

Accessibility & contrast

On white

8.61

#3F31C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3F31C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F31C3

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F31C3	#FFFFFF	#000000	##FFFFFF
##3F31C3	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C7

Deuteranopia (green-blind)

#0046C0

Tritanopia (blue-blind)

#005B78

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f31c3;
/* rgb */ color: rgb(63, 49, 195);
/* oklch */ color: oklch(43.7% 0.214 277.1);

Tailwind

colors: {
  custom: {
    50: '#866cd6',
    500: '#3f31c3',
    950: '#000000',
  },
}

SCSS

$custom: #3f31c3;
$custom-light: #866cd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f31c3",
  "rgb": {
    "r": 63,
    "g": 49,
    "b": 195
  },
  "hsl": {
    "h": 245.753,
    "s": 59.836,
    "l": 47.843
  },
  "oklch": {
    "l": 0.43746,
    "c": 0.21396,
    "h": 277.1
  },
  "luminance": 0.07194
}

Semantic roles & 50–950 ramp

primary

#3F31C3

secondary

#C5CC83

accent

#E345D4

background

#F9F6FD

surface

#F1EBFA

border

#CBC6D3

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F31C3

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

Preview Lab → · Contrast checker → · Palette generator →