#3F76DF#3F76DF

#3F76DF is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.4% C 0.171 H 261.8°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F76DF
RGB	rgb(63, 118, 223)
HSL	hsl(219, 71%, 56%)
HSV	hsv(219, 72%, 87%)
CMYK	cmyk(71.7%, 47.1%, 0%, 12.5%)
CIE-LAB	lab(51.08, 17.12, -58.89)
CIE-LCH	lch(51.08, 61.33, 286.21°)
OKLab	oklab(58.4% -0.0243 -0.1689)
OKLCH	oklch(58.4% 0.171 261.8)
XYZ	xyz(21.8429, 19.3390, 72.3794)
Luminance	0.1934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76DF #DFA83F

analogous

#3FC6DF #3F76DF #583FDF

triadic

#3F76DF #DF3F76 #76DF3F

tetradic

#3F76DF #DF3FC6 #DFA83F #3FDF58

square

#3F76DF #DF3FC6 #DFA83F #3FDF58

split-complementary

#3F76DF #DF583F #C6DF3F

monochromatic

#17408C #2057C1 #3F76DF #739BE8 #A8C1F0

Accessibility & contrast

On white

4.31

#3F76DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#3F76DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76DF

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76DF	#FFFFFF	#000000	##000000
##3F76DF	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D81E3

Deuteranopia (green-blind)

#1273DD

Tritanopia (blue-blind)

#008FA0

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f76df;
/* rgb */ color: rgb(63, 118, 223);
/* oklch */ color: oklch(58.4% 0.171 261.8);

Tailwind

colors: {
  custom: {
    50: '#879cea',
    500: '#3f76df',
    950: '#000000',
  },
}

SCSS

$custom: #3f76df;
$custom-light: #879cea;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76df",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 223
  },
  "hsl": {
    "h": 219.375,
    "s": 71.429,
    "l": 56.078
  },
  "oklch": {
    "l": 0.58395,
    "c": 0.17066,
    "h": 261.8
  },
  "luminance": 0.19341
}

Semantic roles & 50–950 ramp

primary

#3F76DF

secondary

#DEC79C

accent

#B03AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #3F76DF

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

Preview Lab → · Contrast checker → · Palette generator →