#3F34BB#3F34BB

#3F34BB is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.4% C 0.201 H 277.5°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F34BB
RGB	rgb(63, 52, 187)
HSL	hsl(245, 56%, 47%)
HSV	hsv(245, 72%, 73%)
CMYK	cmyk(66.3%, 72.2%, 0%, 26.7%)
CIE-LAB	lab(32.03, 45.49, -69.11)
CIE-LCH	lch(32.03, 82.74, 303.35°)
OKLab	oklab(43.36% 0.0264 -0.1996)
OKLCH	oklch(43.36% 0.201 277.5)
XYZ	xyz(12.2446, 7.0996, 47.7292)
Luminance	0.0710 (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

#3F34BB #B0BB34

analogous

#346DBB #3F34BB #8334BB

triadic

#3F34BB #BB3F34 #34BB3F

tetradic

#3F34BB #BB346D #B0BB34 #34BB83

square

#3F34BB #BB346D #B0BB34 #34BB83

split-complementary

#3F34BB #BB8334 #6DBB34

monochromatic

#1F195B #2F278B #3F34BB #655BD1 #928BDF

Accessibility & contrast

On white

8.68

#3F34BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3F34BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F34BB

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F34BB	#FFFFFF	#000000	##FFFFFF
##3F34BB	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BF

Deuteranopia (green-blind)

#0046B9

Tritanopia (blue-blind)

#005A74

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f34bb;
/* rgb */ color: rgb(63, 52, 187);
/* oklch */ color: oklch(43.4% 0.201 277.5);

Tailwind

colors: {
  custom: {
    50: '#846dd1',
    500: '#3f34bb',
    950: '#000000',
  },
}

SCSS

$custom: #3f34bb;
$custom-light: #846dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f34bb",
  "rgb": {
    "r": 63,
    "g": 52,
    "b": 187
  },
  "hsl": {
    "h": 244.889,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43361,
    "c": 0.20132,
    "h": 277.5
  },
  "luminance": 0.07101
}

Semantic roles & 50–950 ramp

primary

#3F34BB

secondary

#C3C982

accent

#E048D3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3F34BB

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

Preview Lab → · Contrast checker → · Palette generator →