#3F62BC#3F62BC

#3F62BC is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.8% C 0.147 H 265.6°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F62BC
RGB	rgb(63, 98, 188)
HSL	hsl(223, 50%, 49%)
HSV	hsv(223, 66%, 74%)
CMYK	cmyk(66.5%, 47.9%, 0%, 26.3%)
CIE-LAB	lab(43.39, 17.12, -51.22)
CIE-LCH	lch(43.39, 54.01, 288.48°)
OKLab	oklab(51.8% -0.0114 -0.1467)
OKLCH	oklch(51.8% 0.147 265.6)
XYZ	xyz(15.4915, 13.4215, 49.3414)
Luminance	0.1342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F62BC #BC993F

analogous

#3FA1BC #3F62BC #5B3FBC

triadic

#3F62BC #BC3F62 #62BC3F

tetradic

#3F62BC #BC3FA1 #BC993F #3FBC5B

square

#3F62BC #BC3FA1 #BC993F #3FBC5B

split-complementary

#3F62BC #BC5B3F #A1BC3F

monochromatic

#203260 #304A8E #3F62BC #6B86CD #99ACDD

Accessibility & contrast

On white

5.70

#3F62BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3F62BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F62BC

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F62BC	#FFFFFF	#000000	##FFFFFF
##3F62BC	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#336DBF

Deuteranopia (green-blind)

#1761BA

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f62bc;
/* rgb */ color: rgb(63, 98, 188);
/* oklch */ color: oklch(51.8% 0.147 265.6);

Tailwind

colors: {
  custom: {
    50: '#818ed1',
    500: '#3f62bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f62bc;
$custom-light: #818ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f62bc",
  "rgb": {
    "r": 63,
    "g": 98,
    "b": 188
  },
  "hsl": {
    "h": 223.2,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.51801,
    "c": 0.14713,
    "h": 265.6
  },
  "luminance": 0.13423
}

Semantic roles & 50–950 ramp

primary

#3F62BC

secondary

#C9B88E

accent

#B24ED9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3F62BC

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

Preview Lab → · Contrast checker → · Palette generator →