#3976CC#3976CC

#3976CC is a mid, vivid blue. Relative luminance 0.182; OKLCH L 56.9% C 0.147 H 257.5°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3976CC
RGB	rgb(57, 118, 204)
HSL	hsl(215, 59%, 51%)
HSV	hsv(215, 72%, 80%)
CMYK	cmyk(72.1%, 42.2%, 0%, 20%)
CIE-LAB	lab(49.72, 9.39, -50.31)
CIE-LCH	lch(49.72, 51.18, 280.58°)
OKLab	oklab(56.92% -0.0319 -0.1438)
OKLCH	oklch(56.92% 0.147 257.5)
XYZ	xyz(19.0609, 18.1843, 59.6204)
Luminance	0.1819 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976CC #CC8F39

analogous

#39BFCC #3976CC #4539CC

triadic

#3976CC #CC3976 #76CC39

tetradic

#3976CC #CC39BF #CC8F39 #39CC45

square

#3976CC #CC39BF #CC8F39 #39CC45

split-complementary

#3976CC #CC4539 #BFCC39

monochromatic

#1C3E6E #295A9F #3976CC #6A98D9 #9AB9E5

Accessibility & contrast

On white

4.53

#3976CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3976CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3976CC

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976CC	#FFFFFF	#000000	##000000
##3976CC	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7ECF

Deuteranopia (green-blind)

#3370CA

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3976cc;
/* rgb */ color: rgb(57, 118, 204);
/* oklch */ color: oklch(56.9% 0.147 257.5);

Tailwind

colors: {
  custom: {
    50: '#819cdc',
    500: '#3976cc',
    950: '#000000',
  },
}

SCSS

$custom: #3976cc;
$custom-light: #819cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3976cc",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 204
  },
  "hsl": {
    "h": 215.102,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56915,
    "c": 0.1473,
    "h": 257.5
  },
  "luminance": 0.18186
}

Semantic roles & 50–950 ramp

primary

#3976CC

secondary

#D1B690

accent

#A146E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3976CC

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

Preview Lab → · Contrast checker → · Palette generator →