#3F59EA#3F59EA

#3F59EA is a mid, highly saturated blue. Relative luminance 0.141; OKLCH L 53.6% C 0.219 H 269.5°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#3F59EA
RGB	rgb(63, 89, 234)
HSL	hsl(231, 80%, 58%)
HSV	hsv(231, 73%, 92%)
CMYK	cmyk(73.1%, 62%, 0%, 8.2%)
CIE-LAB	lab(44.43, 39.21, -75.88)
CIE-LCH	lch(44.43, 85.41, 297.33°)
OKLab	oklab(53.64% -0.002 -0.2193)
OKLCH	oklch(53.64% 0.219 269.5)
XYZ	xyz(20.4685, 14.1399, 79.4765)
Luminance	0.1414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F59EA #EAD03F

analogous

#3FAFEA #3F59EA #7A3FEA

triadic

#3F59EA #EA3F59 #59EA3F

tetradic

#3F59EA #EA3FAF #EAD03F #3FEA7A

square

#3F59EA #EA3FAF #EAD03F #3FEA7A

split-complementary

#3F59EA #EA7A3F #AFEA3F

monochromatic

#11279D #1734D5 #3F59EA #7689F0 #ADB8F6

Accessibility & contrast

On white

5.49

#3F59EA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3F59EA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F59EA

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F59EA	#FFFFFF	#000000	##FFFFFF
##3F59EA	1.00	5.49	3.83	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071EF

Deuteranopia (green-blind)

#0061E7

Tritanopia (blue-blind)

#007F99

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3f59ea;
/* rgb */ color: rgb(63, 89, 234);
/* oklch */ color: oklch(53.6% 0.219 269.5);

Tailwind

colors: {
  custom: {
    50: '#8b87f2',
    500: '#3f59ea',
    950: '#000000',
  },
}

SCSS

$custom: #3f59ea;
$custom-light: #8b87f2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f59ea",
  "rgb": {
    "r": 63,
    "g": 89,
    "b": 234
  },
  "hsl": {
    "h": 230.877,
    "s": 80.282,
    "l": 58.235
  },
  "oklch": {
    "l": 0.53637,
    "c": 0.2193,
    "h": 269.5
  },
  "luminance": 0.14142
}

Semantic roles & 50–950 ramp

primary

#3F59EA

secondary

#E4DAA0

accent

#D931F7

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #3F59EA

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

Preview Lab → · Contrast checker → · Palette generator →