#3F76CE#3F76CE

#3F76CE is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.3% C 0.148 H 259.4°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F76CE
RGB	rgb(63, 118, 206)
HSL	hsl(217, 59%, 53%)
HSV	hsv(217, 69%, 81%)
CMYK	cmyk(69.4%, 42.7%, 0%, 19.2%)
CIE-LAB	lab(50.06, 10.99, -50.90)
CIE-LCH	lch(50.06, 52.07, 282.18°)
OKLab	oklab(57.28% -0.0272 -0.1454)
OKLCH	oklch(57.28% 0.148 259.4)
XYZ	xyz(19.6649, 18.4678, 60.9088)
Luminance	0.1847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76CE #CE973F

analogous

#3FBDCE #3F76CE #4F3FCE

triadic

#3F76CE #CE3F76 #76CE3F

tetradic

#3F76CE #CE3FBD #CE973F #3FCE4F

square

#3F76CE #CE3FBD #CE973F #3FCE4F

split-complementary

#3F76CE #CE4F3F #BDCE3F

monochromatic

#1E3F75 #2A5AA6 #3F76CE #7099DA #A1BCE7

Accessibility & contrast

On white

4.47

#3F76CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#3F76CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76CE

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76CE	#FFFFFF	#000000	##000000
##3F76CE	1.00	4.47	4.69	4.69
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7ED1

Deuteranopia (green-blind)

#3371CC

Tritanopia (blue-blind)

#008A98

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3f76ce;
/* rgb */ color: rgb(63, 118, 206);
/* oklch */ color: oklch(57.3% 0.148 259.4);

Tailwind

colors: {
  custom: {
    50: '#849ddd',
    500: '#3f76ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f76ce;
$custom-light: #849ddd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76ce",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 206
  },
  "hsl": {
    "h": 216.923,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.57278,
    "c": 0.14795,
    "h": 259.4
  },
  "luminance": 0.1847
}

Semantic roles & 50–950 ramp

primary

#3F76CE

secondary

#D3BC95

accent

#A645E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F76CE

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

Preview Lab → · Contrast checker → · Palette generator →