#3F6EBF#3F6EBF

#3F6EBF is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.6% C 0.137 H 260.5°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F6EBF
RGB	rgb(63, 110, 191)
HSL	hsl(218, 50%, 50%)
HSV	hsv(218, 67%, 75%)
CMYK	cmyk(67%, 42.4%, 0%, 25.1%)
CIE-LAB	lab(46.93, 10.60, -47.29)
CIE-LCH	lch(46.93, 48.46, 282.63°)
OKLab	oklab(54.58% -0.0225 -0.1349)
OKLCH	oklch(54.58% 0.137 260.5)
XYZ	xyz(17.0265, 15.9685, 51.4650)
Luminance	0.1597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6EBF #BF903F

analogous

#3FAEBF #3F6EBF #503FBF

triadic

#3F6EBF #BF3F6E #6EBF3F

tetradic

#3F6EBF #BF3FAE #BF903F #3FBF50

square

#3F6EBF #BF3FAE #BF903F #3FBF50

split-complementary

#3F6EBF #BF503F #AEBF3F

monochromatic

#213963 #305391 #3F6EBF #6D91CF #9BB3DE

Accessibility & contrast

On white

5.01

#3F6EBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#3F6EBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6EBF

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6EBF	#FFFFFF	#000000	##FFFFFF
##3F6EBF	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4876C2

Deuteranopia (green-blind)

#336ABD

Tritanopia (blue-blind)

#00818D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6ebf;
/* rgb */ color: rgb(63, 110, 191);
/* oklch */ color: oklch(54.6% 0.137 260.5);

Tailwind

colors: {
  custom: {
    50: '#8297d3',
    500: '#3f6ebf',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ebf;
$custom-light: #8297d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ebf",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 191
  },
  "hsl": {
    "h": 217.969,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.54581,
    "c": 0.13681,
    "h": 260.5
  },
  "luminance": 0.1597
}

Semantic roles & 50–950 ramp

primary

#3F6EBF

secondary

#CAB590

accent

#A64EDA

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3F6EBF

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

Preview Lab → · Contrast checker → · Palette generator →