#3977C0#3977C0

#3977C0 is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.4% C 0.130 H 254.2°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3977C0
RGB	rgb(57, 119, 192)
HSL	hsl(212, 54%, 49%)
HSV	hsv(212, 70%, 75%)
CMYK	cmyk(70.3%, 38%, 0%, 24.7%)
CIE-LAB	lab(49.33, 4.42, -44.05)
CIE-LCH	lch(49.33, 44.28, 275.73°)
OKLab	oklab(56.4% -0.0355 -0.1254)
OKLCH	oklch(56.4% 0.13 254.2)
XYZ	xyz(17.7951, 17.8674, 52.3699)
Luminance	0.1787 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977C0 #C08239

analogous

#39BBC0 #3977C0 #3E39C0

triadic

#3977C0 #C03977 #77C039

tetradic

#3977C0 #C039BB #C08239 #39C03E

square

#3977C0 #C039BB #C08239 #39C03E

split-complementary

#3977C0 #C03E39 #BBC039

monochromatic

#1D3D62 #2B5A91 #3977C0 #6597D1 #94B7DF

Accessibility & contrast

On white

4.59

#3977C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#3977C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3977C0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977C0	#FFFFFF	#000000	##FFFFFF
##3977C0	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567CC3

Deuteranopia (green-blind)

#4170BF

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3977c0;
/* rgb */ color: rgb(57, 119, 192);
/* oklch */ color: oklch(56.4% 0.130 254.2);

Tailwind

colors: {
  custom: {
    50: '#7f9dd3',
    500: '#3977c0',
    950: '#000000',
  },
}

SCSS

$custom: #3977c0;
$custom-light: #7f9dd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3977c0",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 192
  },
  "hsl": {
    "h": 212.444,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.56399,
    "c": 0.13036,
    "h": 254.2
  },
  "luminance": 0.17869
}

Semantic roles & 50–950 ramp

primary

#3977C0

secondary

#CBAD8A

accent

#9A4ADE

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3977C0

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

Preview Lab → · Contrast checker → · Palette generator →