#3F6FC6#3F6FC6

#3F6FC6 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.2% C 0.145 H 261.2°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F6FC6
RGB	rgb(63, 111, 198)
HSL	hsl(219, 54%, 51%)
HSV	hsv(219, 68%, 78%)
CMYK	cmyk(68.2%, 43.9%, 0%, 22.4%)
CIE-LAB	lab(47.63, 12.48, -50.21)
CIE-LCH	lch(47.63, 51.74, 283.96°)
OKLab	oklab(55.25% -0.0221 -0.1435)
OKLCH	oklch(55.25% 0.145 261.2)
XYZ	xyz(17.9238, 16.5010, 55.6556)
Luminance	0.1650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6FC6 #C6963F

analogous

#3FB2C6 #3F6FC6 #523FC6

triadic

#3F6FC6 #C63F6F #6FC63F

tetradic

#3F6FC6 #C63FB2 #C6963F #3FC652

square

#3F6FC6 #C63FB2 #C6963F #3FC652

split-complementary

#3F6FC6 #C6523F #B2C63F

monochromatic

#203A6B #2E549A #3F6FC6 #6E92D4 #9DB6E2

Accessibility & contrast

On white

4.88

#3F6FC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#3F6FC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6FC6

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6FC6	#FFFFFF	#000000	##FFFFFF
##3F6FC6	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4578C9

Deuteranopia (green-blind)

#2D6BC4

Tritanopia (blue-blind)

#008391

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6fc6;
/* rgb */ color: rgb(63, 111, 198);
/* oklch */ color: oklch(55.2% 0.145 261.2);

Tailwind

colors: {
  custom: {
    50: '#8397d8',
    500: '#3f6fc6',
    950: '#000000',
  },
}

SCSS

$custom: #3f6fc6;
$custom-light: #8397d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6fc6",
  "rgb": {
    "r": 63,
    "g": 111,
    "b": 198
  },
  "hsl": {
    "h": 218.667,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.55248,
    "c": 0.14522,
    "h": 261.2
  },
  "luminance": 0.16503
}

Semantic roles & 50–950 ramp

primary

#3F6FC6

secondary

#CEB993

accent

#A94ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6FC6

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

Preview Lab → · Contrast checker → · Palette generator →