#3F3BAD#3F3BAD

#3F3BAD is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.1% C 0.176 H 277.6°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F3BAD
RGB	rgb(63, 59, 173)
HSL	hsl(242, 49%, 45%)
HSV	hsv(242, 66%, 68%)
CMYK	cmyk(63.6%, 65.9%, 0%, 32.2%)
CIE-LAB	lab(32.26, 36.78, -60.42)
CIE-LCH	lch(32.26, 70.74, 301.33°)
OKLab	oklab(43.13% 0.0233 -0.1742)
OKLCH	oklch(43.13% 0.176 277.6)
XYZ	xyz(11.1543, 7.2009, 40.3292)
Luminance	0.0720 (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

#3F3BAD #A9AD3B

analogous

#3B70AD #3F3BAD #783BAD

triadic

#3F3BAD #AD3F3B #3BAD3F

tetradic

#3F3BAD #AD3B70 #A9AD3B #3BAD78

square

#3F3BAD #AD3B70 #A9AD3B #3BAD78

split-complementary

#3F3BAD #AD783B #70AD3B

monochromatic

#1E1C52 #2E2B7F #3F3BAD #615DC8 #8E8BD7

Accessibility & contrast

On white

8.61

#3F3BAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3F3BAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3BAD

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3BAD	#FFFFFF	#000000	##FFFFFF
##3F3BAD	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)

#0051B1

Deuteranopia (green-blind)

#0047AB

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f3bad;
/* rgb */ color: rgb(63, 59, 173);
/* oklch */ color: oklch(43.1% 0.176 277.6);

Tailwind

colors: {
  custom: {
    50: '#8171c6',
    500: '#3f3bad',
    950: '#000000',
  },
}

SCSS

$custom: #3f3bad;
$custom-light: #8171c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3bad",
  "rgb": {
    "r": 63,
    "g": 59,
    "b": 173
  },
  "hsl": {
    "h": 242.105,
    "s": 49.138,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43134,
    "c": 0.17572,
    "h": 277.6
  },
  "luminance": 0.07202
}

Semantic roles & 50–950 ramp

primary

#3F3BAD

secondary

#C0C282

accent

#D94FD4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3F3BAD

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

Preview Lab → · Contrast checker → · Palette generator →