#3F72CD#3F72CD

#3F72CD is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.4% C 0.151 H 261.0°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F72CD
RGB	rgb(63, 114, 205)
HSL	hsl(218, 59%, 53%)
HSV	hsv(218, 69%, 80%)
CMYK	cmyk(69.3%, 44.4%, 0%, 19.6%)
CIE-LAB	lab(48.88, 13.12, -52.21)
CIE-LCH	lch(48.88, 53.84, 284.11°)
OKLab	oklab(56.35% -0.0237 -0.1494)
OKLCH	oklch(56.35% 0.151 261)
XYZ	xyz(19.0827, 17.4972, 60.1174)
Luminance	0.1750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F72CD #CD9A3F

analogous

#3FB9CD #3F72CD #533FCD

triadic

#3F72CD #CD3F72 #72CD3F

tetradic

#3F72CD #CD3FB9 #CD9A3F #3FCD53

square

#3F72CD #CD3FB9 #CD9A3F #3FCD53

split-complementary

#3F72CD #CD533F #B9CD3F

monochromatic

#1E3D74 #2B56A4 #3F72CD #7096DA #A0B9E6

Accessibility & contrast

On white

4.67

#3F72CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#3F72CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F72CD

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F72CD	#FFFFFF	#000000	##FFFFFF
##3F72CD	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457BD0

Deuteranopia (green-blind)

#2B6ECB

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3f72cd;
/* rgb */ color: rgb(63, 114, 205);
/* oklch */ color: oklch(56.4% 0.151 261.0);

Tailwind

colors: {
  custom: {
    50: '#849add',
    500: '#3f72cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f72cd;
$custom-light: #849add;
$custom-dark: #000000;

JSON

{
  "hex": "#3f72cd",
  "rgb": {
    "r": 63,
    "g": 114,
    "b": 205
  },
  "hsl": {
    "h": 218.451,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.5635,
    "c": 0.15122,
    "h": 261
  },
  "luminance": 0.17499
}

Semantic roles & 50–950 ramp

primary

#3F72CD

secondary

#D3BD95

accent

#AA46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F72CD

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

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