#3F62DB#3F62DB

#3F62DB is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.1% C 0.189 H 267.4°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3F62DB
RGB	rgb(63, 98, 219)
HSL	hsl(227, 68%, 55%)
HSV	hsv(227, 71%, 86%)
CMYK	cmyk(71.2%, 55.3%, 0%, 14.1%)
CIE-LAB	lab(45.50, 28.27, -65.64)
CIE-LCH	lch(45.50, 71.47, 293.30°)
OKLab	oklab(54.07% -0.0085 -0.1891)
OKLCH	oklch(54.07% 0.189 267.4)
XYZ	xyz(19.1993, 14.9046, 68.8691)
Luminance	0.1491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F62DB #DBB83F

analogous

#3FB0DB #3F62DB #6A3FDB

triadic

#3F62DB #DB3F62 #62DB3F

tetradic

#3F62DB #DB3FB0 #DBB83F #3FDB6A

square

#3F62DB #DB3FB0 #DBB83F #3FDB6A

split-complementary

#3F62DB #DB6A3F #B0DB3F

monochromatic

#193286 #2345BA #3F62DB #738CE5 #A6B6EE

Accessibility & contrast

On white

5.27

#3F62DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#3F62DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F62DB

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F62DB	#FFFFFF	#000000	##FFFFFF
##3F62DB	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073DF

Deuteranopia (green-blind)

#0065D9

Tritanopia (blue-blind)

#008095

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3f62db;
/* rgb */ color: rgb(63, 98, 219);
/* oklch */ color: oklch(54.1% 0.189 267.4);

Tailwind

colors: {
  custom: {
    50: '#878ee7',
    500: '#3f62db',
    950: '#000000',
  },
}

SCSS

$custom: #3f62db;
$custom-light: #878ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f62db",
  "rgb": {
    "r": 63,
    "g": 98,
    "b": 219
  },
  "hsl": {
    "h": 226.538,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.54073,
    "c": 0.1893,
    "h": 267.4
  },
  "luminance": 0.14907
}

Semantic roles & 50–950 ramp

primary

#3F62DB

secondary

#DCCD9A

accent

#C43DEB

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3F62DB

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

Preview Lab → · Contrast checker → · Palette generator →