#3F4CD7#3F4CD7

#3F4CD7 is a mid, highly saturated blue. Relative luminance 0.111; OKLCH L 49.7% C 0.210 H 272.0°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CD7
RGB	rgb(63, 76, 215)
HSL	hsl(235, 66%, 55%)
HSV	hsv(235, 71%, 84%)
CMYK	cmyk(70.7%, 64.7%, 0%, 15.7%)
CIE-LAB	lab(39.80, 40.62, -72.66)
CIE-LCH	lch(39.80, 83.24, 299.21°)
OKLab	oklab(49.74% 0.0073 -0.2099)
OKLCH	oklch(49.74% 0.21 272)
XYZ	xyz(16.8959, 11.1303, 65.5347)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.66

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4CD7 #D7CA3F

analogous

#3F98D7 #3F4CD7 #7E3FD7

triadic

#3F4CD7 #D73F4C #4CD73F

tetradic

#3F4CD7 #D73F98 #D7CA3F #3FD77E

square

#3F4CD7 #D73F98 #D7CA3F #3FD77E

split-complementary

#3F4CD7 #D77E3F #98D73F

monochromatic

#1B2481 #2532B3 #3F4CD7 #727BE2 #A4AAEC

Accessibility & contrast

On white

6.51

#3F4CD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3F4CD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4CD7

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CD7	#FFFFFF	#000000	##FFFFFF
##3F4CD7	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065DB

Deuteranopia (green-blind)

#0057D4

Tritanopia (blue-blind)

#00718B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f4cd7;
/* rgb */ color: rgb(63, 76, 215);
/* oklch */ color: oklch(49.7% 0.210 272.0);

Tailwind

colors: {
  custom: {
    50: '#887ee4',
    500: '#3f4cd7',
    950: '#000000',
  },
}

SCSS

$custom: #3f4cd7;
$custom-light: #887ee4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4cd7",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 215
  },
  "hsl": {
    "h": 234.868,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.49744,
    "c": 0.21007,
    "h": 272
  },
  "luminance": 0.11132
}

Semantic roles & 50–950 ramp

primary

#3F4CD7

secondary

#D9D499

accent

#DA3FE8

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #3F4CD7

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

Preview Lab → · Contrast checker → · Palette generator →