#3F5DD7#3F5DD7

#3F5DD7 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.8% C 0.190 H 268.6°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DD7
RGB	rgb(63, 93, 215)
HSL	hsl(228, 66%, 55%)
HSV	hsv(228, 71%, 84%)
CMYK	cmyk(70.7%, 56.7%, 0%, 15.7%)
CIE-LAB	lab(43.93, 30.01, -65.91)
CIE-LCH	lch(43.93, 72.42, 294.48°)
OKLab	oklab(52.8% -0.0048 -0.19)
OKLCH	oklch(52.8% 0.19 268.6)
XYZ	xyz(18.2258, 13.7899, 65.9780)
Luminance	0.1379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DD7 #D7B93F

analogous

#3FA9D7 #3F5DD7 #6D3FD7

triadic

#3F5DD7 #D73F5D #5DD73F

tetradic

#3F5DD7 #D73FA9 #D7B93F #3FD76D

square

#3F5DD7 #D73FA9 #D7B93F #3FD76D

split-complementary

#3F5DD7 #D76D3F #A9D73F

monochromatic

#1B2F81 #2541B3 #3F5DD7 #7288E2 #A4B2EC

Accessibility & contrast

On white

5.59

#3F5DD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#3F5DD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DD7

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DD7	#FFFFFF	#000000	##FFFFFF
##3F5DD7	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDB

Deuteranopia (green-blind)

#0061D5

Tritanopia (blue-blind)

#007B91

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f5dd7;
/* rgb */ color: rgb(63, 93, 215);
/* oklch */ color: oklch(52.8% 0.190 268.6);

Tailwind

colors: {
  custom: {
    50: '#878ae4',
    500: '#3f5dd7',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dd7;
$custom-light: #878ae4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dd7",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 215
  },
  "hsl": {
    "h": 228.158,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.528,
    "c": 0.19005,
    "h": 268.6
  },
  "luminance": 0.13792
}

Semantic roles & 50–950 ramp

primary

#3F5DD7

secondary

#D9CC99

accent

#C73FE8

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3F5DD7

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

Preview Lab → · Contrast checker → · Palette generator →