#3F5EBC#3F5EBC

#3F5EBC is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.0% C 0.152 H 267.1°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EBC
RGB	rgb(63, 94, 188)
HSL	hsl(225, 50%, 49%)
HSV	hsv(225, 66%, 74%)
CMYK	cmyk(66.5%, 50%, 0%, 26.3%)
CIE-LAB	lab(42.29, 19.69, -52.99)
CIE-LCH	lch(42.29, 56.52, 290.38°)
OKLab	oklab(50.97% -0.0076 -0.1519)
OKLCH	oklch(50.97% 0.152 267.1)
XYZ	xyz(15.1266, 12.6916, 49.2198)
Luminance	0.1269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EBC #BC9D3F

analogous

#3F9DBC #3F5EBC #5F3FBC

triadic

#3F5EBC #BC3F5E #5EBC3F

tetradic

#3F5EBC #BC3F9D #BC9D3F #3FBC5F

square

#3F5EBC #BC3F9D #BC9D3F #3FBC5F

split-complementary

#3F5EBC #BC5F3F #9DBC3F

monochromatic

#203060 #30478E #3F5EBC #6B83CD #99AADD

Accessibility & contrast

On white

5.93

#3F5EBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3F5EBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EBC

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EBC	#FFFFFF	#000000	##FFFFFF
##3F5EBC	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#296ABF

Deuteranopia (green-blind)

#005EBA

Tritanopia (blue-blind)

#007484

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5ebc;
/* rgb */ color: rgb(63, 94, 188);
/* oklch */ color: oklch(51.0% 0.152 267.1);

Tailwind

colors: {
  custom: {
    50: '#828bd1',
    500: '#3f5ebc',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ebc;
$custom-light: #828bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ebc",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 188
  },
  "hsl": {
    "h": 225.12,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.50965,
    "c": 0.15213,
    "h": 267.1
  },
  "luminance": 0.12693
}

Semantic roles & 50–950 ramp

primary

#3F5EBC

secondary

#C9BA8E

accent

#B74ED9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #3F5EBC

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

Preview Lab → · Contrast checker → · Palette generator →