#3F6AC7#3F6AC7

#3F6AC7 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.2% C 0.153 H 263.5°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F6AC7
RGB	rgb(63, 106, 199)
HSL	hsl(221, 55%, 51%)
HSV	hsv(221, 68%, 78%)
CMYK	cmyk(68.3%, 46.7%, 0%, 22%)
CIE-LAB	lab(46.29, 15.99, -52.92)
CIE-LCH	lch(46.29, 55.29, 286.81°)
OKLab	oklab(54.24% -0.0173 -0.1516)
OKLCH	oklch(54.24% 0.153 263.5)
XYZ	xyz(17.5091, 15.4866, 56.0882)
Luminance	0.1549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6AC7 #C79C3F

analogous

#3FAEC7 #3F6AC7 #583FC7

triadic

#3F6AC7 #C73F6A #6AC73F

tetradic

#3F6AC7 #C73FAE #C79C3F #3FC758

square

#3F6AC7 #C73FAE #C79C3F #3FC758

split-complementary

#3F6AC7 #C7583F #AEC73F

monochromatic

#20386C #2D509B #3F6AC7 #6E8FD5 #9EB4E3

Accessibility & contrast

On white

5.12

#3F6AC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#3F6AC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6AC7

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6AC7	#FFFFFF	#000000	##FFFFFF
##3F6AC7	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A74CA

Deuteranopia (green-blind)

#1D68C5

Tritanopia (blue-blind)

#00808F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f6ac7;
/* rgb */ color: rgb(63, 106, 199);
/* oklch */ color: oklch(54.2% 0.153 263.5);

Tailwind

colors: {
  custom: {
    50: '#8394d8',
    500: '#3f6ac7',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ac7;
$custom-light: #8394d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ac7",
  "rgb": {
    "r": 63,
    "g": 106,
    "b": 199
  },
  "hsl": {
    "h": 221.029,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.54244,
    "c": 0.15255,
    "h": 263.5
  },
  "luminance": 0.15488
}

Semantic roles & 50–950 ramp

primary

#3F6AC7

secondary

#CFBC93

accent

#AF4ADE

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6AC7

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

Preview Lab → · Contrast checker → · Palette generator →