#3977AC#3977AC

#3977AC is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.3% C 0.105 H 246.9°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3977AC
RGB	rgb(57, 119, 172)
HSL	hsl(208, 50%, 45%)
HSV	hsv(208, 67%, 67%)
CMYK	cmyk(66.9%, 30.8%, 0%, 32.5%)
CIE-LAB	lab(48.31, -2.70, -34.11)
CIE-LCH	lch(48.31, 34.21, 265.47°)
OKLab	oklab(55.26% -0.041 -0.0964)
OKLCH	oklch(55.26% 0.105 246.9)
XYZ	xyz(15.7278, 17.0405, 41.4820)
Luminance	0.1704 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977AC #AC6E39

analogous

#39ACA7 #3977AC #393EAC

triadic

#3977AC #AC3977 #77AC39

tetradic

#3977AC #A739AC #AC6E39 #3EAC39

square

#3977AC #A739AC #AC6E39 #3EAC39

split-complementary

#3977AC #AC393E #ACA739

monochromatic

#1B3750 #2A577E #3977AC #5A95C8 #88B3D8

Accessibility & contrast

On white

4.76

#3977AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3977AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977AC

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977AC	#FFFFFF	#000000	##FFFFFF
##3977AC	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AE

Deuteranopia (green-blind)

#506EAB

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3977ac;
/* rgb */ color: rgb(57, 119, 172);
/* oklch */ color: oklch(55.3% 0.105 246.9);

Tailwind

colors: {
  custom: {
    50: '#7c9ec5',
    500: '#3977ac',
    950: '#000000',
  },
}

SCSS

$custom: #3977ac;
$custom-light: #7c9ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#3977ac",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 172
  },
  "hsl": {
    "h": 207.652,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.55261,
    "c": 0.10474,
    "h": 246.9
  },
  "luminance": 0.17042
}

Semantic roles & 50–950 ramp

primary

#3977AC

secondary

#C29E7F

accent

#8E4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3977AC

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

Preview Lab → · Contrast checker → · Palette generator →