#3F58CE#3F58CE

#3F58CE is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.1% C 0.184 H 269.6°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F58CE
RGB	rgb(63, 88, 206)
HSL	hsl(230, 59%, 53%)
HSV	hsv(230, 69%, 81%)
CMYK	cmyk(69.4%, 57.3%, 0%, 19.2%)
CIE-LAB	lab(41.99, 29.98, -63.91)
CIE-LCH	lch(41.99, 70.59, 295.13°)
OKLab	oklab(51.14% -0.0012 -0.1842)
OKLCH	oklch(51.14% 0.184 269.6)
XYZ	xyz(16.6764, 12.4908, 59.9127)
Luminance	0.1249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F58CE #CEB53F

analogous

#3FA0CE #3F58CE #6D3FCE

triadic

#3F58CE #CE3F58 #58CE3F

tetradic

#3F58CE #CE3FA0 #CEB53F #3FCE6D

square

#3F58CE #CE3FA0 #CEB53F #3FCE6D

split-complementary

#3F58CE #CE6D3F #A0CE3F

monochromatic

#1E2D75 #2A40A6 #3F58CE #7082DA #A1ADE7

Accessibility & contrast

On white

6.00

#3F58CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#3F58CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F58CE

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F58CE	#FFFFFF	#000000	##FFFFFF
##3F58CE	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD2

Deuteranopia (green-blind)

#005DCC

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f58ce;
/* rgb */ color: rgb(63, 88, 206);
/* oklch */ color: oklch(51.1% 0.184 269.6);

Tailwind

colors: {
  custom: {
    50: '#8586de',
    500: '#3f58ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f58ce;
$custom-light: #8586de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f58ce",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 206
  },
  "hsl": {
    "h": 229.51,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51135,
    "c": 0.18417,
    "h": 269.6
  },
  "luminance": 0.12492
}

Semantic roles & 50–950 ramp

primary

#3F58CE

secondary

#D3C995

accent

#C745E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F58CE

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

Preview Lab → · Contrast checker → · Palette generator →