#3F6DE8#3F6DE8

#3F6DE8 is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.2% C 0.193 H 265.3°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F6DE8
RGB	rgb(63, 109, 232)
HSL	hsl(224, 79%, 58%)
HSV	hsv(224, 73%, 91%)
CMYK	cmyk(72.8%, 53%, 0%, 9%)
CIE-LAB	lab(49.27, 26.01, -66.87)
CIE-LCH	lch(49.27, 71.75, 291.25°)
OKLab	oklab(57.21% -0.016 -0.1926)
OKLCH	oklch(57.21% 0.193 265.3)
XYZ	xyz(22.0789, 17.8178, 78.6039)
Luminance	0.1782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6DE8 #E8BA3F

analogous

#3FC1E8 #3F6DE8 #663FE8

triadic

#3F6DE8 #E83F6D #6DE83F

tetradic

#3F6DE8 #E83FC1 #E8BA3F #3FE866

square

#3F6DE8 #E83FC1 #E8BA3F #3FE866

split-complementary

#3F6DE8 #E8663F #C1E83F

monochromatic

#12379A #194BD1 #3F6DE8 #7697EF #ACC0F5

Accessibility & contrast

On white

4.60

#3F6DE8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3F6DE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DE8

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6DE8	#FFFFFF	#000000	##FFFFFF
##3F6DE8	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B7DEC

Deuteranopia (green-blind)

#006EE6

Tritanopia (blue-blind)

#008BA0

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3f6de8;
/* rgb */ color: rgb(63, 109, 232);
/* oklch */ color: oklch(57.2% 0.193 265.3);

Tailwind

colors: {
  custom: {
    50: '#8a96f0',
    500: '#3f6de8',
    950: '#000000',
  },
}

SCSS

$custom: #3f6de8;
$custom-light: #8a96f0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6de8",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 232
  },
  "hsl": {
    "h": 223.669,
    "s": 78.605,
    "l": 57.843
  },
  "oklch": {
    "l": 0.57208,
    "c": 0.19323,
    "h": 265.3
  },
  "luminance": 0.1782
}

Semantic roles & 50–950 ramp

primary

#3F6DE8

secondary

#E3D1A0

accent

#C033F5

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0D0D17

muted

#7E7E85

Preview Lab

Preview with #3F6DE8

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

Preview Lab → · Contrast checker → · Palette generator →