#3F5EC6#3F5EC6

#3F5EC6 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.7% C 0.166 H 267.7°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EC6
RGB	rgb(63, 94, 198)
HSL	hsl(226, 54%, 51%)
HSV	hsv(226, 68%, 78%)
CMYK	cmyk(68.2%, 52.5%, 0%, 22.4%)
CIE-LAB	lab(42.97, 23.28, -57.70)
CIE-LCH	lch(42.97, 62.22, 291.97°)
OKLab	oklab(51.69% -0.0066 -0.1658)
OKLCH	oklch(51.69% 0.166 267.7)
XYZ	xyz(16.2421, 13.1378, 55.0950)
Luminance	0.1314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EC6 #C6A73F

analogous

#3FA1C6 #3F5EC6 #633FC6

triadic

#3F5EC6 #C63F5E #5EC63F

tetradic

#3F5EC6 #C63FA1 #C6A73F #3FC663

square

#3F5EC6 #C63FA1 #C6A73F #3FC663

split-complementary

#3F5EC6 #C6633F #A1C63F

monochromatic

#20316B #2E479A #3F5EC6 #6E86D4 #9DADE2

Accessibility & contrast

On white

5.79

#3F5EC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#3F5EC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EC6

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EC6	#FFFFFF	#000000	##FFFFFF
##3F5EC6	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#196CCA

Deuteranopia (green-blind)

#0060C4

Tritanopia (blue-blind)

#007789

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f5ec6;
/* rgb */ color: rgb(63, 94, 198);
/* oklch */ color: oklch(51.7% 0.166 267.7);

Tailwind

colors: {
  custom: {
    50: '#838bd8',
    500: '#3f5ec6',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ec6;
$custom-light: #838bd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ec6",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 198
  },
  "hsl": {
    "h": 226.222,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.51692,
    "c": 0.16594,
    "h": 267.7
  },
  "luminance": 0.13139
}

Semantic roles & 50–950 ramp

primary

#3F5EC6

secondary

#CEC193

accent

#BC4ADE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5EC6

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

Preview Lab → · Contrast checker → · Palette generator →