#3977C7#3977C7

#3977C7 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.8% C 0.140 H 255.9°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3977C7
RGB	rgb(57, 119, 199)
HSL	hsl(214, 56%, 50%)
HSV	hsv(214, 71%, 78%)
CMYK	cmyk(71.4%, 40.2%, 0%, 22%)
CIE-LAB	lab(49.72, 6.96, -47.46)
CIE-LCH	lch(49.72, 47.96, 278.34°)
OKLab	oklab(56.82% -0.0339 -0.1354)
OKLCH	oklch(56.82% 0.14 255.9)
XYZ	xyz(18.5892, 18.1850, 56.5521)
Luminance	0.1819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977C7 #C78939

analogous

#39BEC7 #3977C7 #4239C7

triadic

#3977C7 #C73977 #77C739

tetradic

#3977C7 #C739BE #C78939 #39C742

square

#3977C7 #C739BE #C78939 #39C742

split-complementary

#3977C7 #C74239 #BEC739

monochromatic

#1D3E68 #2B5A98 #3977C7 #6998D4 #98B9E2

Accessibility & contrast

On white

4.53

#3977C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3977C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3977C7

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977C7	#FFFFFF	#000000	##000000
##3977C7	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)

#527DCA

Deuteranopia (green-blind)

#3B70C5

Tritanopia (blue-blind)

#008A95

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3977c7;
/* rgb */ color: rgb(57, 119, 199);
/* oklch */ color: oklch(56.8% 0.140 255.9);

Tailwind

colors: {
  custom: {
    50: '#809dd8',
    500: '#3977c7',
    950: '#000000',
  },
}

SCSS

$custom: #3977c7;
$custom-light: #809dd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3977c7",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 199
  },
  "hsl": {
    "h": 213.803,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.56824,
    "c": 0.13957,
    "h": 255.9
  },
  "luminance": 0.18187
}

Semantic roles & 50–950 ramp

primary

#3977C7

secondary

#CEB28E

accent

#9D49DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3977C7

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

Preview Lab → · Contrast checker → · Palette generator →