#3F6EC8#3F6EC8

#3F6EC8 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.2% C 0.149 H 262.0°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F6EC8
RGB	rgb(63, 110, 200)
HSL	hsl(219, 55%, 52%)
HSV	hsv(219, 69%, 78%)
CMYK	cmyk(68.5%, 45%, 0%, 21.6%)
CIE-LAB	lab(47.47, 13.83, -51.62)
CIE-LCH	lch(47.47, 53.44, 285.00°)
OKLab	oklab(55.16% -0.0208 -0.1477)
OKLCH	oklch(55.16% 0.149 262)
XYZ	xyz(18.0475, 16.3769, 56.8423)
Luminance	0.1638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6EC8 #C8993F

analogous

#3FB3C8 #3F6EC8 #553FC8

triadic

#3F6EC8 #C83F6E #6EC83F

tetradic

#3F6EC8 #C83FB3 #C8993F #3FC855

square

#3F6EC8 #C83FB3 #C8993F #3FC855

split-complementary

#3F6EC8 #C8553F #B3C83F

monochromatic

#1F3A6D #2D539D #3F6EC8 #6F92D6 #9EB6E3

Accessibility & contrast

On white

4.91

#3F6EC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#3F6EC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6EC8

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6EC8	#FFFFFF	#000000	##FFFFFF
##3F6EC8	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4177CB

Deuteranopia (green-blind)

#286BC6

Tritanopia (blue-blind)

#008391

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6ec8;
/* rgb */ color: rgb(63, 110, 200);
/* oklch */ color: oklch(55.2% 0.149 262.0);

Tailwind

colors: {
  custom: {
    50: '#8397d9',
    500: '#3f6ec8',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ec8;
$custom-light: #8397d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ec8",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 200
  },
  "hsl": {
    "h": 219.416,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.55163,
    "c": 0.14913,
    "h": 262
  },
  "luminance": 0.16379
}

Semantic roles & 50–950 ramp

primary

#3F6EC8

secondary

#D0BB93

accent

#AB49DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6EC8

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

Preview Lab → · Contrast checker → · Palette generator →