#3F58CD#3F58CD

#3F58CD is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.1% C 0.183 H 269.6°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3F58CD
RGB	rgb(63, 88, 205)
HSL	hsl(229, 59%, 53%)
HSV	hsv(229, 69%, 80%)
CMYK	cmyk(69.3%, 57.1%, 0%, 19.6%)
CIE-LAB	lab(41.91, 29.62, -63.46)
CIE-LCH	lch(41.91, 70.03, 295.02°)
OKLab	oklab(51.05% -0.0012 -0.1828)
OKLCH	oklch(51.05% 0.183 269.6)
XYZ	xyz(16.5553, 12.4424, 59.2749)
Luminance	0.1244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F58CD #CDB43F

analogous

#3F9FCD #3F58CD #6D3FCD

triadic

#3F58CD #CD3F58 #58CD3F

tetradic

#3F58CD #CD3F9F #CDB43F #3FCD6D

square

#3F58CD #CD3F9F #CDB43F #3FCD6D

split-complementary

#3F58CD #CD6D3F #9FCD3F

monochromatic

#1E2D74 #2B40A4 #3F58CD #7082DA #A0ACE6

Accessibility & contrast

On white

6.02

#3F58CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#3F58CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F58CD

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F58CD	#FFFFFF	#000000	##FFFFFF
##3F58CD	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD1

Deuteranopia (green-blind)

#005DCB

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f58cd;
/* rgb */ color: rgb(63, 88, 205);
/* oklch */ color: oklch(51.1% 0.183 269.6);

Tailwind

colors: {
  custom: {
    50: '#8586dd',
    500: '#3f58cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f58cd;
$custom-light: #8586dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f58cd",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 205
  },
  "hsl": {
    "h": 229.437,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51055,
    "c": 0.18284,
    "h": 269.6
  },
  "luminance": 0.12444
}

Semantic roles & 50–950 ramp

primary

#3F58CD

secondary

#D3C895

accent

#C646E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F58CD

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

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