#3F3BBA#3F3BBA

#3F3BBA is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.3% C 0.192 H 276.5°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F3BBA
RGB	rgb(63, 59, 186)
HSL	hsl(242, 52%, 48%)
HSV	hsv(242, 68%, 73%)
CMYK	cmyk(66.1%, 68.3%, 0%, 27.1%)
CIE-LAB	lab(33.41, 41.11, -66.26)
CIE-LCH	lch(33.41, 77.97, 301.82°)
OKLab	oklab(44.32% 0.0218 -0.1913)
OKLCH	oklch(44.32% 0.192 276.5)
XYZ	xyz(12.4739, 7.7288, 47.2793)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.77

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3BBA #B6BA3B

analogous

#3B76BA #3F3BBA #7E3BBA

triadic

#3F3BBA #BA3F3B #3BBA3F

tetradic

#3F3BBA #BA3B76 #B6BA3B #3BBA7E

square

#3F3BBA #BA3B76 #B6BA3B #3BBA7E

split-complementary

#3F3BBA #BA7E3B #76BA3B

monochromatic

#201E5D #2F2C8C #3F3BBA #6864CE #9593DD

Accessibility & contrast

On white

8.25

#3F3BBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3F3BBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3BBA

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3BBA	#FFFFFF	#000000	##FFFFFF
##3F3BBA	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BE

Deuteranopia (green-blind)

#0049B8

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f3bba;
/* rgb */ color: rgb(63, 59, 186);
/* oklch */ color: oklch(44.3% 0.192 276.5);

Tailwind

colors: {
  custom: {
    50: '#8472d0',
    500: '#3f3bba',
    950: '#000000',
  },
}

SCSS

$custom: #3f3bba;
$custom-light: #8472d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3bba",
  "rgb": {
    "r": 63,
    "g": 59,
    "b": 186
  },
  "hsl": {
    "h": 241.89,
    "s": 51.837,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44321,
    "c": 0.19249,
    "h": 276.5
  },
  "luminance": 0.0773
}

Semantic roles & 50–950 ramp

primary

#3F3BBA

secondary

#C6C889

accent

#DB4DD7

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3F3BBA

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

Preview Lab → · Contrast checker → · Palette generator →