#3F5DC4#3F5DC4

#3F5DC4 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.3% C 0.164 H 267.9°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DC4
RGB	rgb(63, 93, 196)
HSL	hsl(226, 53%, 51%)
HSV	hsv(226, 68%, 77%)
CMYK	cmyk(67.9%, 52.6%, 0%, 23.1%)
CIE-LAB	lab(42.57, 23.20, -57.20)
CIE-LCH	lch(42.57, 61.72, 292.08°)
OKLab	oklab(51.34% -0.0059 -0.1643)
OKLCH	oklch(51.34% 0.164 267.9)
XYZ	xyz(15.9246, 12.8694, 53.8587)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DC4 #C4A63F

analogous

#3F9FC4 #3F5DC4 #633FC4

triadic

#3F5DC4 #C43F5D #5DC43F

tetradic

#3F5DC4 #C43F9F #C4A63F #3FC463

square

#3F5DC4 #C43F9F #C4A63F #3FC463

split-complementary

#3F5DC4 #C4633F #9FC43F

monochromatic

#203068 #2E4697 #3F5DC4 #6E84D2 #9DACE1

Accessibility & contrast

On white

5.88

#3F5DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#3F5DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DC4

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DC4	#FFFFFF	#000000	##FFFFFF
##3F5DC4	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#196BC8

Deuteranopia (green-blind)

#005FC2

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5dc4;
/* rgb */ color: rgb(63, 93, 196);
/* oklch */ color: oklch(51.3% 0.164 267.9);

Tailwind

colors: {
  custom: {
    50: '#838ad7',
    500: '#3f5dc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dc4;
$custom-light: #838ad7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dc4",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 196
  },
  "hsl": {
    "h": 226.466,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51343,
    "c": 0.16445,
    "h": 267.9
  },
  "luminance": 0.12871
}

Semantic roles & 50–950 ramp

primary

#3F5DC4

secondary

#CDC092

accent

#BC4BDC

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5DC4

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

Preview Lab → · Contrast checker → · Palette generator →