#3977BD#3977BD

#3977BD is a mid, vivid cyan. Relative luminance 0.177; OKLCH L 56.2% C 0.126 H 253.3°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3977BD
RGB	rgb(57, 119, 189)
HSL	hsl(212, 54%, 48%)
HSV	hsv(212, 70%, 74%)
CMYK	cmyk(69.8%, 37%, 0%, 25.9%)
CIE-LAB	lab(49.17, 3.34, -42.58)
CIE-LCH	lch(49.17, 42.71, 274.49°)
OKLab	oklab(56.22% -0.0363 -0.1211)
OKLCH	oklch(56.22% 0.126 253.3)
XYZ	xyz(17.4661, 17.7358, 50.6371)
Luminance	0.1774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977BD #BD7F39

analogous

#39B9BD #3977BD #3D39BD

triadic

#3977BD #BD3977 #77BD39

tetradic

#3977BD #BD39B9 #BD7F39 #39BD3D

square

#3977BD #BD39B9 #BD7F39 #39BD3D

split-complementary

#3977BD #BD3D39 #B9BD39

monochromatic

#1D3C5F #2B598E #3977BD #6396D0 #92B6DE

Accessibility & contrast

On white

4.62

#3977BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3977BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3977BD

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977BD	#FFFFFF	#000000	##FFFFFF
##3977BD	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577CC0

Deuteranopia (green-blind)

#446FBC

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3977bd;
/* rgb */ color: rgb(57, 119, 189);
/* oklch */ color: oklch(56.2% 0.126 253.3);

Tailwind

colors: {
  custom: {
    50: '#7f9dd1',
    500: '#3977bd',
    950: '#000000',
  },
}

SCSS

$custom: #3977bd;
$custom-light: #7f9dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3977bd",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 189
  },
  "hsl": {
    "h": 211.818,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.56221,
    "c": 0.12643,
    "h": 253.3
  },
  "luminance": 0.17738
}

Semantic roles & 50–950 ramp

primary

#3977BD

secondary

#C9AB89

accent

#984BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3977BD

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

Preview Lab → · Contrast checker → · Palette generator →