#3F34BC#3F34BC

#3F34BC is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.5% C 0.203 H 277.4°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F34BC
RGB	rgb(63, 52, 188)
HSL	hsl(245, 57%, 47%)
HSV	hsv(245, 72%, 74%)
CMYK	cmyk(66.5%, 72.3%, 0%, 26.3%)
CIE-LAB	lab(32.13, 45.81, -69.54)
CIE-LCH	lch(32.13, 83.28, 303.37°)
OKLab	oklab(43.46% 0.0262 -0.2008)
OKLCH	oklch(43.46% 0.203 277.4)
XYZ	xyz(12.3520, 7.1425, 48.2949)
Luminance	0.0714 (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

#3F34BC #B1BC34

analogous

#346DBC #3F34BC #8334BC

triadic

#3F34BC #BC3F34 #34BC3F

tetradic

#3F34BC #BC346D #B1BC34 #34BC83

square

#3F34BC #BC346D #B1BC34 #34BC83

split-complementary

#3F34BC #BC8334 #6DBC34

monochromatic

#1F195C #2F278C #3F34BC #655BD2 #928BDF

Accessibility & contrast

On white

8.65

#3F34BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3F34BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F34BC

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F34BC	#FFFFFF	#000000	##FFFFFF
##3F34BC	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C0

Deuteranopia (green-blind)

#0046BA

Tritanopia (blue-blind)

#005A75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f34bc;
/* rgb */ color: rgb(63, 52, 188);
/* oklch */ color: oklch(43.5% 0.203 277.4);

Tailwind

colors: {
  custom: {
    50: '#856dd1',
    500: '#3f34bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f34bc;
$custom-light: #856dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f34bc",
  "rgb": {
    "r": 63,
    "g": 52,
    "b": 188
  },
  "hsl": {
    "h": 244.853,
    "s": 56.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.43459,
    "c": 0.20255,
    "h": 277.4
  },
  "luminance": 0.07144
}

Semantic roles & 50–950 ramp

primary

#3F34BC

secondary

#C4C983

accent

#E048D4

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3F34BC

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

Preview Lab → · Contrast checker → · Palette generator →