#3F77D6#3F77D6

#3F77D6 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.0% C 0.158 H 260.3°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F77D6
RGB	rgb(63, 119, 214)
HSL	hsl(218, 65%, 54%)
HSV	hsv(218, 71%, 84%)
CMYK	cmyk(70.6%, 44.4%, 0%, 16.1%)
CIE-LAB	lab(50.81, 13.25, -54.24)
CIE-LCH	lch(50.81, 55.84, 283.72°)
OKLab	oklab(58.01% -0.0266 -0.1552)
OKLCH	oklch(58.01% 0.158 260.3)
XYZ	xyz(20.7800, 19.1033, 66.1974)
Luminance	0.1910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F77D6 #D69E3F

analogous

#3FC3D6 #3F77D6 #533FD6

triadic

#3F77D6 #D63F77 #77D63F

tetradic

#3F77D6 #D63FC3 #D69E3F #3FD653

square

#3F77D6 #D63FC3 #D69E3F #3FD653

split-complementary

#3F77D6 #D6533F #C3D63F

monochromatic

#1B407F #265AB2 #3F77D6 #719BE1 #A4BEEC

Accessibility & contrast

On white

4.36

#3F77D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#3F77D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F77D6

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F77D6	#FFFFFF	#000000	##000000
##3F77D6	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4880DA

Deuteranopia (green-blind)

#2B73D4

Tritanopia (blue-blind)

#008D9C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f77d6;
/* rgb */ color: rgb(63, 119, 214);
/* oklch */ color: oklch(58.0% 0.158 260.3);

Tailwind

colors: {
  custom: {
    50: '#869de3',
    500: '#3f77d6',
    950: '#000000',
  },
}

SCSS

$custom: #3f77d6;
$custom-light: #869de3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f77d6",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 214
  },
  "hsl": {
    "h": 217.748,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.58008,
    "c": 0.15751,
    "h": 260.3
  },
  "luminance": 0.19105
}

Semantic roles & 50–950 ramp

primary

#3F77D6

secondary

#D8C198

accent

#AA40E8

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E15

muted

#7D7E84

Preview Lab

Preview with #3F77D6

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

Preview Lab → · Contrast checker → · Palette generator →