#3F5DC2#3F5DC2

#3F5DC2 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.2% C 0.162 H 267.8°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DC2
RGB	rgb(63, 93, 194)
HSL	hsl(226, 52%, 50%)
HSV	hsv(226, 68%, 76%)
CMYK	cmyk(67.5%, 52.1%, 0%, 23.9%)
CIE-LAB	lab(42.43, 22.49, -56.26)
CIE-LCH	lch(42.43, 60.59, 291.79°)
OKLab	oklab(51.2% -0.0061 -0.1616)
OKLCH	oklch(51.2% 0.162 267.8)
XYZ	xyz(15.6985, 12.7790, 52.6678)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DC2 #C2A43F

analogous

#3F9EC2 #3F5DC2 #633FC2

triadic

#3F5DC2 #C23F5D #5DC23F

tetradic

#3F5DC2 #C23F9E #C2A43F #3FC263

square

#3F5DC2 #C23F9E #C2A43F #3FC263

split-complementary

#3F5DC2 #C2633F #9EC23F

monochromatic

#203066 #2F4695 #3F5DC2 #6D84D1 #9CABE0

Accessibility & contrast

On white

5.91

#3F5DC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3F5DC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DC2

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DC2	#FFFFFF	#000000	##FFFFFF
##3F5DC2	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D6AC6

Deuteranopia (green-blind)

#005EC0

Tritanopia (blue-blind)

#007586

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5dc2;
/* rgb */ color: rgb(63, 93, 194);
/* oklch */ color: oklch(51.2% 0.162 267.8);

Tailwind

colors: {
  custom: {
    50: '#838ad5',
    500: '#3f5dc2',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dc2;
$custom-light: #838ad5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dc2",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 194
  },
  "hsl": {
    "h": 226.26,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.51195,
    "c": 0.1617,
    "h": 267.8
  },
  "luminance": 0.12781
}

Semantic roles & 50–950 ramp

primary

#3F5DC2

secondary

#CCBE91

accent

#BB4DDB

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5DC2

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

Preview Lab → · Contrast checker → · Palette generator →