#3F53CD#3F53CD

#3F53CD is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.1% C 0.189 H 270.8°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F53CD
RGB	rgb(63, 83, 205)
HSL	hsl(232, 59%, 53%)
HSV	hsv(232, 69%, 80%)
CMYK	cmyk(69.3%, 59.5%, 0%, 19.6%)
CIE-LAB	lab(40.65, 32.79, -65.51)
CIE-LCH	lch(40.65, 73.25, 296.59°)
OKLab	oklab(50.12% 0.0027 -0.1889)
OKLCH	oklch(50.12% 0.189 270.8)
XYZ	xyz(16.1589, 11.6495, 59.1428)
Luminance	0.1165 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F53CD #CDB93F

analogous

#3F9ACD #3F53CD #723FCD

triadic

#3F53CD #CD3F53 #53CD3F

tetradic

#3F53CD #CD3F9A #CDB93F #3FCD72

square

#3F53CD #CD3F9A #CDB93F #3FCD72

split-complementary

#3F53CD #CD723F #9ACD3F

monochromatic

#1E2A74 #2B3CA4 #3F53CD #707EDA #A0AAE6

Accessibility & contrast

On white

6.31

#3F53CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#3F53CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F53CD

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F53CD	#FFFFFF	#000000	##FFFFFF
##3F53CD	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D1

Deuteranopia (green-blind)

#0059CB

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3f53cd;
/* rgb */ color: rgb(63, 83, 205);
/* oklch */ color: oklch(50.1% 0.189 270.8);

Tailwind

colors: {
  custom: {
    50: '#8683dd',
    500: '#3f53cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f53cd;
$custom-light: #8683dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f53cd",
  "rgb": {
    "r": 63,
    "g": 83,
    "b": 205
  },
  "hsl": {
    "h": 231.549,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50119,
    "c": 0.18893,
    "h": 270.8
  },
  "luminance": 0.11651
}

Semantic roles & 50–950 ramp

primary

#3F53CD

secondary

#D3CA95

accent

#CC46E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #3F53CD

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

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