#3F5EC5#3F5EC5

#3F5EC5 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.6% C 0.165 H 267.7°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EC5
RGB	rgb(63, 94, 197)
HSL	hsl(226, 54%, 51%)
HSV	hsv(226, 68%, 77%)
CMYK	cmyk(68%, 52.3%, 0%, 22.7%)
CIE-LAB	lab(42.90, 22.92, -57.23)
CIE-LCH	lch(42.90, 61.65, 291.83°)
OKLab	oklab(51.62% -0.0067 -0.1644)
OKLCH	oklch(51.62% 0.165 267.7)
XYZ	xyz(16.1272, 13.0918, 54.4896)
Luminance	0.1309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EC5 #C5A63F

analogous

#3FA1C5 #3F5EC5 #633FC5

triadic

#3F5EC5 #C53F5E #5EC53F

tetradic

#3F5EC5 #C53FA1 #C5A63F #3FC563

square

#3F5EC5 #C53FA1 #C5A63F #3FC563

split-complementary

#3F5EC5 #C5633F #A1C53F

monochromatic

#20316A #2E4799 #3F5EC5 #6E85D3 #9DADE1

Accessibility & contrast

On white

5.80

#3F5EC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#3F5EC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EC5

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EC5	#FFFFFF	#000000	##FFFFFF
##3F5EC5	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B6CC9

Deuteranopia (green-blind)

#005FC3

Tritanopia (blue-blind)

#007688

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f5ec5;
/* rgb */ color: rgb(63, 94, 197);
/* oklch */ color: oklch(51.6% 0.165 267.7);

Tailwind

colors: {
  custom: {
    50: '#838bd7',
    500: '#3f5ec5',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ec5;
$custom-light: #838bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ec5",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 197
  },
  "hsl": {
    "h": 226.119,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51618,
    "c": 0.16458,
    "h": 267.7
  },
  "luminance": 0.13093
}

Semantic roles & 50–950 ramp

primary

#3F5EC5

secondary

#CEC092

accent

#BB4BDD

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5EC5

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

Preview Lab → · Contrast checker → · Palette generator →