#3977AD#3977AD

#3977AD is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.106 H 247.4°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3977AD
RGB	rgb(57, 119, 173)
HSL	hsl(208, 50%, 45%)
HSV	hsv(208, 67%, 68%)
CMYK	cmyk(67.1%, 31.2%, 0%, 32.2%)
CIE-LAB	lab(48.36, -2.35, -34.61)
CIE-LCH	lch(48.36, 34.69, 266.12°)
OKLab	oklab(55.32% -0.0407 -0.0978)
OKLCH	oklch(55.32% 0.106 247.4)
XYZ	xyz(15.8242, 17.0790, 41.9897)
Luminance	0.1708 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977AD #AD6F39

analogous

#39ADA9 #3977AD #393DAD

triadic

#3977AD #AD3977 #77AD39

tetradic

#3977AD #A939AD #AD6F39 #3DAD39

square

#3977AD #A939AD #AD6F39 #3DAD39

split-complementary

#3977AD #AD393D #ADA939

monochromatic

#1B3851 #2A577F #3977AD #5A95C9 #88B3D8

Accessibility & contrast

On white

4.76

#3977AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3977AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977AD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977AD	#FFFFFF	#000000	##FFFFFF
##3977AD	1.00	4.76	4.42	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F79AF

Deuteranopia (green-blind)

#4F6EAC

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3977ad;
/* rgb */ color: rgb(57, 119, 173);
/* oklch */ color: oklch(55.3% 0.106 247.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3977ad",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 173
  },
  "hsl": {
    "h": 207.931,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.55315,
    "c": 0.10598,
    "h": 247.4
  },
  "luminance": 0.17081
}

Semantic roles & 50–950 ramp

primary

#3977AD

secondary

#C29F80

accent

#8F4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3977AD

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

Preview Lab → · Contrast checker → · Palette generator →