#3F5CC4#3F5CC4

#3F5CC4 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.1% C 0.166 H 268.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CC4
RGB	rgb(63, 92, 196)
HSL	hsl(227, 53%, 51%)
HSV	hsv(227, 68%, 77%)
CMYK	cmyk(67.9%, 53.1%, 0%, 23.1%)
CIE-LAB	lab(42.30, 23.85, -57.63)
CIE-LCH	lch(42.30, 62.36, 292.48°)
OKLab	oklab(51.14% -0.005 -0.1656)
OKLCH	oklch(51.14% 0.166 268.3)
XYZ	xyz(15.8374, 12.6950, 53.8296)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CC4 #C4A73F

analogous

#3F9FC4 #3F5CC4 #643FC4

triadic

#3F5CC4 #C43F5C #5CC43F

tetradic

#3F5CC4 #C43F9F #C4A73F #3FC464

square

#3F5CC4 #C43F9F #C4A73F #3FC464

split-complementary

#3F5CC4 #C4643F #9FC43F

monochromatic

#203068 #2E4597 #3F5CC4 #6E84D2 #9DABE1

Accessibility & contrast

On white

5.93

#3F5CC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3F5CC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CC4

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CC4	#FFFFFF	#000000	##FFFFFF
##3F5CC4	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#146AC8

Deuteranopia (green-blind)

#005EC2

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5cc4;
/* rgb */ color: rgb(63, 92, 196);
/* oklch */ color: oklch(51.1% 0.166 268.3);

Tailwind

colors: {
  custom: {
    50: '#8389d7',
    500: '#3f5cc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cc4;
$custom-light: #8389d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cc4",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 196
  },
  "hsl": {
    "h": 226.917,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51142,
    "c": 0.1657,
    "h": 268.3
  },
  "luminance": 0.12697
}

Semantic roles & 50–950 ramp

primary

#3F5CC4

secondary

#CDC092

accent

#BD4BDC

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5CC4

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

Preview Lab → · Contrast checker → · Palette generator →