#3F76CF#3F76CF

#3F76CF is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.3% C 0.149 H 259.6°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F76CF
RGB	rgb(63, 118, 207)
HSL	hsl(217, 60%, 53%)
HSV	hsv(217, 70%, 81%)
CMYK	cmyk(69.6%, 43%, 0%, 18.8%)
CIE-LAB	lab(50.12, 11.35, -51.37)
CIE-LCH	lch(50.12, 52.61, 282.46°)
OKLab	oklab(57.34% -0.027 -0.1468)
OKLCH	oklch(57.34% 0.149 259.6)
XYZ	xyz(19.7868, 18.5166, 61.5506)
Luminance	0.1852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76CF #CF983F

analogous

#3FBECF #3F76CF #503FCF

triadic

#3F76CF #CF3F76 #76CF3F

tetradic

#3F76CF #CF3FBE #CF983F #3FCF50

square

#3F76CF #CF3FBE #CF983F #3FCF50

split-complementary

#3F76CF #CF503F #BECF3F

monochromatic

#1E3F76 #2A5AA7 #3F76CF #7099DB #A1BCE7

Accessibility & contrast

On white

4.46

#3F76CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3F76CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76CF

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76CF	#FFFFFF	#000000	##000000
##3F76CF	1.00	4.46	4.70	4.70
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7ED2

Deuteranopia (green-blind)

#3271CD

Tritanopia (blue-blind)

#008B98

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3f76cf;
/* rgb */ color: rgb(63, 118, 207);
/* oklch */ color: oklch(57.3% 0.149 259.6);

Tailwind

colors: {
  custom: {
    50: '#849dde',
    500: '#3f76cf',
    950: '#000000',
  },
}

SCSS

$custom: #3f76cf;
$custom-light: #849dde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76cf",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 207
  },
  "hsl": {
    "h": 217.083,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.57342,
    "c": 0.14929,
    "h": 259.6
  },
  "luminance": 0.18519
}

Semantic roles & 50–950 ramp

primary

#3F76CF

secondary

#D4BC96

accent

#A745E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F76CF

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

Preview Lab → · Contrast checker → · Palette generator →