#3976CF#3976CF

#3976CF is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.1% C 0.151 H 258.1°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3976CF
RGB	rgb(57, 118, 207)
HSL	hsl(216, 61%, 52%)
HSV	hsv(216, 72%, 81%)
CMYK	cmyk(72.5%, 43%, 0%, 18.8%)
CIE-LAB	lab(49.89, 10.49, -51.74)
CIE-LCH	lch(49.89, 52.80, 281.46°)
OKLab	oklab(57.11% -0.0313 -0.148)
OKLCH	oklch(57.11% 0.151 258.1)
XYZ	xyz(19.4242, 18.3296, 61.5336)
Luminance	0.1833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976CF #CF9239

analogous

#39C1CF #3976CF #4739CF

triadic

#3976CF #CF3976 #76CF39

tetradic

#3976CF #CF39C1 #CF9239 #39CF47

square

#3976CF #CF39C1 #CF9239 #39CF47

split-complementary

#3976CF #CF4739 #C1CF39

monochromatic

#1C3F72 #285AA3 #3976CF #6A98DB #9CBAE7

Accessibility & contrast

On white

4.50

#3976CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#3976CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3976CF

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976CF	#FFFFFF	#000000	##000000
##3976CF	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7ED2

Deuteranopia (green-blind)

#2F70CD

Tritanopia (blue-blind)

#008B98

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3976cf;
/* rgb */ color: rgb(57, 118, 207);
/* oklch */ color: oklch(57.1% 0.151 258.1);

Tailwind

colors: {
  custom: {
    50: '#829cde',
    500: '#3976cf',
    950: '#000000',
  },
}

SCSS

$custom: #3976cf;
$custom-light: #829cde;
$custom-dark: #000000;

JSON

{
  "hex": "#3976cf",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 207
  },
  "hsl": {
    "h": 215.6,
    "s": 60.976,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57107,
    "c": 0.15129,
    "h": 258.1
  },
  "luminance": 0.18332
}

Semantic roles & 50–950 ramp

primary

#3976CF

secondary

#D3B891

accent

#A344E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3976CF

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

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