#3F5DC1#3F5DC1

#3F5DC1 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.1% C 0.160 H 267.8°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DC1
RGB	rgb(63, 93, 193)
HSL	hsl(226, 51%, 50%)
HSV	hsv(226, 67%, 76%)
CMYK	cmyk(67.4%, 51.8%, 0%, 24.3%)
CIE-LAB	lab(42.36, 22.13, -55.79)
CIE-LCH	lch(42.36, 60.02, 291.63°)
OKLab	oklab(51.12% -0.0062 -0.1602)
OKLCH	oklch(51.12% 0.16 267.8)
XYZ	xyz(15.5866, 12.7342, 52.0783)
Luminance	0.1274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DC1 #C1A33F

analogous

#3F9EC1 #3F5DC1 #623FC1

triadic

#3F5DC1 #C13F5D #5DC13F

tetradic

#3F5DC1 #C13F9E #C1A33F #3FC162

square

#3F5DC1 #C13F9E #C1A33F #3FC162

split-complementary

#3F5DC1 #C1623F #9EC13F

monochromatic

#213065 #304793 #3F5DC1 #6D84D0 #9CABDF

Accessibility & contrast

On white

5.92

#3F5DC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3F5DC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DC1

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DC1	#FFFFFF	#000000	##FFFFFF
##3F5DC1	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F6AC5

Deuteranopia (green-blind)

#005EBF

Tritanopia (blue-blind)

#007586

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5dc1;
/* rgb */ color: rgb(63, 93, 193);
/* oklch */ color: oklch(51.1% 0.160 267.8);

Tailwind

colors: {
  custom: {
    50: '#838ad4',
    500: '#3f5dc1',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dc1;
$custom-light: #838ad4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dc1",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 193
  },
  "hsl": {
    "h": 226.154,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.51122,
    "c": 0.16032,
    "h": 267.8
  },
  "luminance": 0.12736
}

Semantic roles & 50–950 ramp

primary

#3F5DC1

secondary

#CBBE91

accent

#BA4DDB

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5DC1

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

Preview Lab → · Contrast checker → · Palette generator →