#3F6DC7#3F6DC7

#3F6DC7 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 54.9% C 0.149 H 262.3°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F6DC7
RGB	rgb(63, 109, 199)
HSL	hsl(220, 55%, 51%)
HSV	hsv(220, 68%, 78%)
CMYK	cmyk(68.3%, 45.2%, 0%, 22%)
CIE-LAB	lab(47.13, 14.10, -51.59)
CIE-LCH	lch(47.13, 53.48, 285.28°)
OKLab	oklab(54.88% -0.0201 -0.1476)
OKLCH	oklch(54.88% 0.149 262.3)
XYZ	xyz(17.8237, 16.1158, 56.1931)
Luminance	0.1612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6DC7 #C7993F

analogous

#3FB1C7 #3F6DC7 #553FC7

triadic

#3F6DC7 #C73F6D #6DC73F

tetradic

#3F6DC7 #C73FB1 #C7993F #3FC755

square

#3F6DC7 #C73FB1 #C7993F #3FC755

split-complementary

#3F6DC7 #C7553F #B1C73F

monochromatic

#20396C #2D539B #3F6DC7 #6E91D5 #9EB5E3

Accessibility & contrast

On white

4.97

#3F6DC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#3F6DC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DC7

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6DC7	#FFFFFF	#000000	##FFFFFF
##3F6DC7	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4076CA

Deuteranopia (green-blind)

#266AC5

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f6dc7;
/* rgb */ color: rgb(63, 109, 199);
/* oklch */ color: oklch(54.9% 0.149 262.3);

Tailwind

colors: {
  custom: {
    50: '#8396d8',
    500: '#3f6dc7',
    950: '#000000',
  },
}

SCSS

$custom: #3f6dc7;
$custom-light: #8396d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6dc7",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 199
  },
  "hsl": {
    "h": 219.706,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.54883,
    "c": 0.14895,
    "h": 262.3
  },
  "luminance": 0.16118
}

Semantic roles & 50–950 ramp

primary

#3F6DC7

secondary

#CFBB93

accent

#AC4ADE

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6DC7

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

Preview Lab → · Contrast checker → · Palette generator →