#3F5EBE#3F5EBE

#3F5EBE is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.1% C 0.155 H 267.3°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EBE
RGB	rgb(63, 94, 190)
HSL	hsl(225, 50%, 50%)
HSV	hsv(225, 67%, 75%)
CMYK	cmyk(66.8%, 50.5%, 0%, 25.5%)
CIE-LAB	lab(42.43, 20.41, -53.94)
CIE-LCH	lch(42.43, 57.67, 290.72°)
OKLab	oklab(51.11% -0.0074 -0.1547)
OKLCH	oklch(51.11% 0.155 267.3)
XYZ	xyz(15.3437, 12.7784, 50.3631)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EBE #BE9F3F

analogous

#3F9EBE #3F5EBE #5F3FBE

triadic

#3F5EBE #BE3F5E #5EBE3F

tetradic

#3F5EBE #BE3F9E #BE9F3F #3FBE5F

square

#3F5EBE #BE3F9E #BE9F3F #3FBE5F

split-complementary

#3F5EBE #BE5F3F #9EBE3F

monochromatic

#213162 #304790 #3F5EBE #6C84CE #9AAADD

Accessibility & contrast

On white

5.91

#3F5EBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3F5EBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EBE

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EBE	#FFFFFF	#000000	##FFFFFF
##3F5EBE	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#276AC1

Deuteranopia (green-blind)

#005FBC

Tritanopia (blue-blind)

#007585

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5ebe;
/* rgb */ color: rgb(63, 94, 190);
/* oklch */ color: oklch(51.1% 0.155 267.3);

Tailwind

colors: {
  custom: {
    50: '#828bd2',
    500: '#3f5ebe',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ebe;
$custom-light: #828bd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ebe",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 190
  },
  "hsl": {
    "h": 225.354,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.51108,
    "c": 0.15492,
    "h": 267.3
  },
  "luminance": 0.1278
}

Semantic roles & 50–950 ramp

primary

#3F5EBE

secondary

#C9BB8F

accent

#B84EDA

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5EBE

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

Preview Lab → · Contrast checker → · Palette generator →