#3F76D3#3F76D3

#3F76D3 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.6% C 0.155 H 260.2°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F76D3
RGB	rgb(63, 118, 211)
HSL	hsl(218, 63%, 54%)
HSV	hsv(218, 70%, 83%)
CMYK	cmyk(70.1%, 44.1%, 0%, 17.3%)
CIE-LAB	lab(50.35, 12.79, -53.27)
CIE-LCH	lch(50.35, 54.79, 283.50°)
OKLab	oklab(57.6% -0.0262 -0.1524)
OKLCH	oklch(57.6% 0.155 260.2)
XYZ	xyz(20.2820, 18.7146, 64.1588)
Luminance	0.1872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76D3 #D39C3F

analogous

#3FC0D3 #3F76D3 #523FD3

triadic

#3F76D3 #D33F76 #76D33F

tetradic

#3F76D3 #D33FC0 #D39C3F #3FD352

square

#3F76D3 #D33FC0 #D39C3F #3FD352

split-complementary

#3F76D3 #D3523F #C0D33F

monochromatic

#1C407B #2859AD #3F76D3 #719ADE #A3BDEA

Accessibility & contrast

On white

4.43

#3F76D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3F76D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76D3

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76D3	#FFFFFF	#000000	##000000
##3F76D3	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#487FD7

Deuteranopia (green-blind)

#2C71D1

Tritanopia (blue-blind)

#008C9A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3f76d3;
/* rgb */ color: rgb(63, 118, 211);
/* oklch */ color: oklch(57.6% 0.155 260.2);

Tailwind

colors: {
  custom: {
    50: '#859ce1',
    500: '#3f76d3',
    950: '#000000',
  },
}

SCSS

$custom: #3f76d3;
$custom-light: #859ce1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76d3",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 211
  },
  "hsl": {
    "h": 217.703,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.57599,
    "c": 0.15465,
    "h": 260.2
  },
  "luminance": 0.18717
}

Semantic roles & 50–950 ramp

primary

#3F76D3

secondary

#D7BF97

accent

#A942E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F76D3

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

Preview Lab → · Contrast checker → · Palette generator →