#3F3BBD#3F3BBD

#3F3BBD is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.6% C 0.196 H 276.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#3F3BBD
RGB	rgb(63, 59, 189)
HSL	hsl(242, 52%, 49%)
HSV	hsv(242, 69%, 74%)
CMYK	cmyk(66.7%, 68.8%, 0%, 25.9%)
CIE-LAB	lab(33.68, 42.10, -67.58)
CIE-LCH	lch(33.68, 79.62, 301.92°)
OKLab	oklab(44.6% 0.0214 -0.1951)
OKLCH	oklch(44.6% 0.196 276.3)
XYZ	xyz(12.7962, 7.8577, 48.9766)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.86

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3BBD #B9BD3B

analogous

#3B78BD #3F3BBD #803BBD

triadic

#3F3BBD #BD3F3B #3BBD3F

tetradic

#3F3BBD #BD3B78 #B9BD3B #3BBD80

square

#3F3BBD #BD3B78 #B9BD3B #3BBD80

split-complementary

#3F3BBD #BD803B #78BD3B

monochromatic

#201E60 #2F2C8E #3F3BBD #6966CF #9795DE

Accessibility & contrast

On white

8.17

#3F3BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3F3BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3BBD

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3BBD	#FFFFFF	#000000	##FFFFFF
##3F3BBD	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C1

Deuteranopia (green-blind)

#0049BB

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f3bbd;
/* rgb */ color: rgb(63, 59, 189);
/* oklch */ color: oklch(44.6% 0.196 276.3);

Tailwind

colors: {
  custom: {
    50: '#8472d2',
    500: '#3f3bbd',
    950: '#000000',
  },
}

SCSS

$custom: #3f3bbd;
$custom-light: #8472d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3bbd",
  "rgb": {
    "r": 63,
    "g": 59,
    "b": 189
  },
  "hsl": {
    "h": 241.846,
    "s": 52.419,
    "l": 48.627
  },
  "oklch": {
    "l": 0.44602,
    "c": 0.19629,
    "h": 276.3
  },
  "luminance": 0.07859
}

Semantic roles & 50–950 ramp

primary

#3F3BBD

secondary

#C7C98B

accent

#DC4CD7

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3BBD

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

Preview Lab → · Contrast checker → · Palette generator →