#3F5CC3#3F5CC3

#3F5CC3 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.1% C 0.164 H 268.2°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CC3
RGB	rgb(63, 92, 195)
HSL	hsl(227, 52%, 51%)
HSV	hsv(227, 68%, 76%)
CMYK	cmyk(67.7%, 52.8%, 0%, 23.5%)
CIE-LAB	lab(42.23, 23.49, -57.16)
CIE-LCH	lch(42.23, 61.80, 292.34°)
OKLab	oklab(51.07% -0.0051 -0.1642)
OKLCH	oklch(51.07% 0.164 268.2)
XYZ	xyz(15.7240, 12.6497, 53.2322)
Luminance	0.1265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CC3 #C3A63F

analogous

#3F9EC3 #3F5CC3 #643FC3

triadic

#3F5CC3 #C33F5C #5CC33F

tetradic

#3F5CC3 #C33F9E #C3A63F #3FC364

square

#3F5CC3 #C33F9E #C3A63F #3FC364

split-complementary

#3F5CC3 #C3643F #9EC33F

monochromatic

#203067 #2F4696 #3F5CC3 #6E84D2 #9CABE0

Accessibility & contrast

On white

5.95

#3F5CC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3F5CC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CC3

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CC3	#FFFFFF	#000000	##FFFFFF
##3F5CC3	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#176AC7

Deuteranopia (green-blind)

#005EC1

Tritanopia (blue-blind)

#007586

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5cc3;
/* rgb */ color: rgb(63, 92, 195);
/* oklch */ color: oklch(51.1% 0.164 268.2);

Tailwind

colors: {
  custom: {
    50: '#8389d6',
    500: '#3f5cc3',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cc3;
$custom-light: #8389d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cc3",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 195
  },
  "hsl": {
    "h": 226.818,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.51068,
    "c": 0.16433,
    "h": 268.2
  },
  "luminance": 0.12651
}

Semantic roles & 50–950 ramp

primary

#3F5CC3

secondary

#CCBF92

accent

#BC4CDC

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5CC3

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

Preview Lab → · Contrast checker → · Palette generator →