#3977A9#3977A9

#3977A9 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 55.1% C 0.101 H 245.5°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#3977A9
RGB	rgb(57, 119, 169)
HSL	hsl(207, 50%, 44%)
HSV	hsv(207, 66%, 66%)
CMYK	cmyk(66.3%, 29.6%, 0%, 33.7%)
CIE-LAB	lab(48.17, -3.75, -32.58)
CIE-LCH	lch(48.17, 32.80, 263.44°)
OKLab	oklab(55.1% -0.042 -0.0919)
OKLCH	oklch(55.1% 0.101 245.5)
XYZ	xyz(15.4429, 16.9265, 39.9817)
Luminance	0.1693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977A9 #A96B39

analogous

#39A9A3 #3977A9 #393FA9

triadic

#3977A9 #A93977 #77A939

tetradic

#3977A9 #A339A9 #A96B39 #3FA939

square

#3977A9 #A339A9 #A96B39 #3FA939

split-complementary

#3977A9 #A9393F #A9A339

monochromatic

#1A374D #2A577B #3977A9 #5896C7 #86B2D6

Accessibility & contrast

On white

4.79

#3977A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3977A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977A9

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977A9	#FFFFFF	#000000	##FFFFFF
##3977A9	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6178AB

Deuteranopia (green-blind)

#526DA8

Tritanopia (blue-blind)

#008389

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3977a9;
/* rgb */ color: rgb(57, 119, 169);
/* oklch */ color: oklch(55.1% 0.101 245.5);

Tailwind

colors: {
  custom: {
    50: '#7b9ec3',
    500: '#3977a9',
    950: '#000000',
  },
}

SCSS

$custom: #3977a9;
$custom-light: #7b9ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#3977a9",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 169
  },
  "hsl": {
    "h": 206.786,
    "s": 49.558,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55101,
    "c": 0.10108,
    "h": 245.5
  },
  "luminance": 0.16928
}

Semantic roles & 50–950 ramp

primary

#3977A9

secondary

#C09B7E

accent

#8C4FD9

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3977A9

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

Preview Lab → · Contrast checker → · Palette generator →