#3F39CA#3F39CA

#3F39CA is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.5% C 0.214 H 275.5°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F39CA
RGB	rgb(63, 57, 202)
HSL	hsl(242, 58%, 51%)
HSV	hsv(242, 72%, 79%)
CMYK	cmyk(68.8%, 71.8%, 0%, 20.8%)
CIE-LAB	lab(34.49, 47.49, -73.86)
CIE-LCH	lch(34.49, 87.82, 302.74°)
OKLab	oklab(45.55% 0.0206 -0.2135)
OKLCH	oklch(45.55% 0.214 275.5)
XYZ	xyz(14.1702, 8.2460, 56.7105)
Luminance	0.0825 (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

#3F39CA #C4CA39

analogous

#397BCA #3F39CA #8739CA

triadic

#3F39CA #CA3F39 #39CA3F

tetradic

#3F39CA #CA397B #C4CA39 #39CA87

square

#3F39CA #CA397B #C4CA39 #39CA87

split-complementary

#3F39CA #CA8739 #7BCA39

monochromatic

#201D6C #2E2A9C #3F39CA #6E69D7 #9D9AE4

Accessibility & contrast

On white

7.93

#3F39CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3F39CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F39CA

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F39CA	#FFFFFF	#000000	##FFFFFF
##3F39CA	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CE

Deuteranopia (green-blind)

#004BC7

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f39ca;
/* rgb */ color: rgb(63, 57, 202);
/* oklch */ color: oklch(45.5% 0.214 275.5);

Tailwind

colors: {
  custom: {
    50: '#8771db',
    500: '#3f39ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f39ca;
$custom-light: #8771db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f39ca",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 202
  },
  "hsl": {
    "h": 242.483,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45549,
    "c": 0.21447,
    "h": 275.5
  },
  "luminance": 0.08247
}

Semantic roles & 50–950 ramp

primary

#3F39CA

secondary

#CDD08F

accent

#E147DB

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F39CA

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

Preview Lab → · Contrast checker → · Palette generator →