#3F6ECE#3F6ECE

#3F6ECE is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.6% C 0.157 H 262.7°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F6ECE
RGB	rgb(63, 110, 206)
HSL	hsl(220, 59%, 53%)
HSV	hsv(220, 69%, 81%)
CMYK	cmyk(69.4%, 46.6%, 0%, 19.2%)
CIE-LAB	lab(47.83, 15.99, -54.46)
CIE-LCH	lch(47.83, 56.76, 286.36°)
OKLab	oklab(55.56% -0.0199 -0.156)
OKLCH	oklch(55.56% 0.157 262.7)
XYZ	xyz(18.7625, 16.6629, 60.6080)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6ECE #CE9F3F

analogous

#3FB5CE #3F6ECE #583FCE

triadic

#3F6ECE #CE3F6E #6ECE3F

tetradic

#3F6ECE #CE3FB5 #CE9F3F #3FCE58

square

#3F6ECE #CE3FB5 #CE9F3F #3FCE58

split-complementary

#3F6ECE #CE583F #B5CE3F

monochromatic

#1E3A75 #2A53A6 #3F6ECE #7093DA #A1B8E7

Accessibility & contrast

On white

4.85

#3F6ECE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#3F6ECE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6ECE

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6ECE	#FFFFFF	#000000	##FFFFFF
##3F6ECE	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C79D2

Deuteranopia (green-blind)

#1C6BCC

Tritanopia (blue-blind)

#008494

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6ece;
/* rgb */ color: rgb(63, 110, 206);
/* oklch */ color: oklch(55.6% 0.157 262.7);

Tailwind

colors: {
  custom: {
    50: '#8497dd',
    500: '#3f6ece',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ece;
$custom-light: #8497dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ece",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 206
  },
  "hsl": {
    "h": 220.28,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.55564,
    "c": 0.1573,
    "h": 262.7
  },
  "luminance": 0.16665
}

Semantic roles & 50–950 ramp

primary

#3F6ECE

secondary

#D3BF95

accent

#AF45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6ECE

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

Preview Lab → · Contrast checker → · Palette generator →