#3F58D6#3F58D6

#3F58D6 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.8% C 0.195 H 269.7°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F58D6
RGB	rgb(63, 88, 214)
HSL	hsl(230, 65%, 54%)
HSV	hsv(230, 71%, 84%)
CMYK	cmyk(70.6%, 58.9%, 0%, 16.1%)
CIE-LAB	lab(42.60, 32.81, -67.51)
CIE-LCH	lch(42.60, 75.07, 295.92°)
OKLab	oklab(51.78% -0.001 -0.1947)
OKLCH	oklch(51.78% 0.195 269.7)
XYZ	xyz(17.6731, 12.8895, 65.1618)
Luminance	0.1289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F58D6 #D6BD3F

analogous

#3FA4D6 #3F58D6 #723FD6

triadic

#3F58D6 #D63F58 #58D63F

tetradic

#3F58D6 #D63FA4 #D6BD3F #3FD672

square

#3F58D6 #D63FA4 #D6BD3F #3FD672

split-complementary

#3F58D6 #D6723F #A4D63F

monochromatic

#1B2C7F #263DB2 #3F58D6 #7184E1 #A4B0EC

Accessibility & contrast

On white

5.87

#3F58D6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3F58D6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F58D6

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F58D6	#FFFFFF	#000000	##FFFFFF
##3F58D6	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDA

Deuteranopia (green-blind)

#005ED4

Tritanopia (blue-blind)

#00788E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f58d6;
/* rgb */ color: rgb(63, 88, 214);
/* oklch */ color: oklch(51.8% 0.195 269.7);

Tailwind

colors: {
  custom: {
    50: '#8786e4',
    500: '#3f58d6',
    950: '#000000',
  },
}

SCSS

$custom: #3f58d6;
$custom-light: #8786e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f58d6",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 214
  },
  "hsl": {
    "h": 230.066,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.51781,
    "c": 0.19475,
    "h": 269.7
  },
  "luminance": 0.12891
}

Semantic roles & 50–950 ramp

primary

#3F58D6

secondary

#D8CE98

accent

#CC40E8

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3F58D6

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

Preview Lab → · Contrast checker → · Palette generator →