#3F6CD9#3F6CD9

#3F6CD9 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.9% C 0.175 H 264.5°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CD9
RGB	rgb(63, 108, 217)
HSL	hsl(222, 67%, 55%)
HSV	hsv(222, 71%, 85%)
CMYK	cmyk(71%, 50.2%, 0%, 14.9%)
CIE-LAB	lab(47.99, 21.22, -60.47)
CIE-LCH	lch(47.99, 64.09, 289.34°)
OKLab	oklab(55.91% -0.0167 -0.1737)
OKLCH	oklch(55.91% 0.175 264.5)
XYZ	xyz(19.9324, 16.7896, 67.8224)
Luminance	0.1679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CD9 #D9AC3F

analogous

#3FB9D9 #3F6CD9 #5F3FD9

triadic

#3F6CD9 #D93F6C #6CD93F

tetradic

#3F6CD9 #D93FB9 #D9AC3F #3FD95F

square

#3F6CD9 #D93FB9 #D9AC3F #3FD95F

split-complementary

#3F6CD9 #D95F3F #B9D93F

monochromatic

#1A3984 #244FB7 #3F6CD9 #7293E3 #A5BAED

Accessibility & contrast

On white

4.82

#3F6CD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3F6CD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CD9

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CD9	#FFFFFF	#000000	##FFFFFF
##3F6CD9	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A79DD

Deuteranopia (green-blind)

#006BD7

Tritanopia (blue-blind)

#008698

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3f6cd9;
/* rgb */ color: rgb(63, 108, 217);
/* oklch */ color: oklch(55.9% 0.175 264.5);

Tailwind

colors: {
  custom: {
    50: '#8795e5',
    500: '#3f6cd9',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cd9;
$custom-light: #8795e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cd9",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 217
  },
  "hsl": {
    "h": 222.468,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.55913,
    "c": 0.17455,
    "h": 264.5
  },
  "luminance": 0.16792
}

Semantic roles & 50–950 ramp

primary

#3F6CD9

secondary

#DAC79A

accent

#B83EEA

background

#F9F9FE

surface

#F1F1FC

border

#CBCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #3F6CD9

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

Preview Lab → · Contrast checker → · Palette generator →