#3F5EC1#3F5EC1

#3F5EC1 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.3% C 0.159 H 267.5°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EC1
RGB	rgb(63, 94, 193)
HSL	hsl(226, 51%, 50%)
HSV	hsv(226, 67%, 76%)
CMYK	cmyk(67.4%, 51.3%, 0%, 24.3%)
CIE-LAB	lab(42.63, 21.48, -55.35)
CIE-LCH	lch(42.63, 59.38, 291.21°)
OKLab	oklab(51.33% -0.0071 -0.1589)
OKLCH	oklch(51.33% 0.159 267.5)
XYZ	xyz(15.6749, 12.9109, 52.1077)
Luminance	0.1291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EC1 #C1A23F

analogous

#3F9FC1 #3F5EC1 #613FC1

triadic

#3F5EC1 #C13F5E #5EC13F

tetradic

#3F5EC1 #C13F9F #C1A23F #3FC161

square

#3F5EC1 #C13F9F #C1A23F #3FC161

split-complementary

#3F5EC1 #C1613F #9FC13F

monochromatic

#213165 #304793 #3F5EC1 #6D85D0 #9CACDF

Accessibility & contrast

On white

5.86

#3F5EC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3F5EC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EC1

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EC1	#FFFFFF	#000000	##FFFFFF
##3F5EC1	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#226BC5

Deuteranopia (green-blind)

#005FBF

Tritanopia (blue-blind)

#007586

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f5ec1;
/* rgb */ color: rgb(63, 94, 193);
/* oklch */ color: oklch(51.3% 0.159 267.5);

Tailwind

colors: {
  custom: {
    50: '#828bd4',
    500: '#3f5ec1',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ec1;
$custom-light: #828bd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ec1",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 193
  },
  "hsl": {
    "h": 225.692,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.51325,
    "c": 0.15907,
    "h": 267.5
  },
  "luminance": 0.12912
}

Semantic roles & 50–950 ramp

primary

#3F5EC1

secondary

#CBBD91

accent

#B94DDB

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5EC1

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

Preview Lab → · Contrast checker → · Palette generator →