#3F5ABC#3F5ABC

#3F5ABC is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.1% C 0.157 H 268.6°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F5ABC
RGB	rgb(63, 90, 188)
HSL	hsl(227, 50%, 49%)
HSV	hsv(227, 66%, 74%)
CMYK	cmyk(66.5%, 52.1%, 0%, 26.3%)
CIE-LAB	lab(41.21, 22.26, -54.73)
CIE-LCH	lch(41.21, 59.08, 292.14°)
OKLab	oklab(50.15% -0.0039 -0.1571)
OKLCH	oklch(50.15% 0.157 268.6)
XYZ	xyz(14.7801, 11.9985, 49.1042)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5ABC #BCA13F

analogous

#3F99BC #3F5ABC #633FBC

triadic

#3F5ABC #BC3F5A #5ABC3F

tetradic

#3F5ABC #BC3F99 #BCA13F #3FBC63

square

#3F5ABC #BC3F99 #BCA13F #3FBC63

split-complementary

#3F5ABC #BC633F #99BC3F

monochromatic

#202E60 #30448E #3F5ABC #6B80CD #99A7DD

Accessibility & contrast

On white

6.18

#3F5ABC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3F5ABC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5ABC

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5ABC	#FFFFFF	#000000	##FFFFFF
##3F5ABC	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D67BF

Deuteranopia (green-blind)

#005CBA

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f5abc;
/* rgb */ color: rgb(63, 90, 188);
/* oklch */ color: oklch(50.1% 0.157 268.6);

Tailwind

colors: {
  custom: {
    50: '#8288d1',
    500: '#3f5abc',
    950: '#000000',
  },
}

SCSS

$custom: #3f5abc;
$custom-light: #8288d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5abc",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 188
  },
  "hsl": {
    "h": 227.04,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.50145,
    "c": 0.15718,
    "h": 268.6
  },
  "luminance": 0.12
}

Semantic roles & 50–950 ramp

primary

#3F5ABC

secondary

#C9BC8E

accent

#BB4ED9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #3F5ABC

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

Preview Lab → · Contrast checker → · Palette generator →