#3977A6#3977A6

#3977A6 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.9% C 0.097 H 243.9°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3977A6
RGB	rgb(57, 119, 166)
HSL	hsl(206, 49%, 44%)
HSV	hsv(206, 66%, 65%)
CMYK	cmyk(65.7%, 28.3%, 0%, 34.9%)
CIE-LAB	lab(48.03, -4.79, -31.06)
CIE-LCH	lch(48.03, 31.42, 261.23°)
OKLab	oklab(54.94% -0.0429 -0.0875)
OKLCH	oklch(54.94% 0.097 243.9)
XYZ	xyz(15.1645, 16.8151, 38.5155)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977A6 #A66839

analogous

#39A69E #3977A6 #3940A6

triadic

#3977A6 #A63977 #77A639

tetradic

#3977A6 #9E39A6 #A66839 #40A639

square

#3977A6 #9E39A6 #A66839 #40A639

split-complementary

#3977A6 #A63940 #A69E39

monochromatic

#1A364B #295678 #3977A6 #5796C5 #84B2D5

Accessibility & contrast

On white

4.81

#3977A6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3977A6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977A6

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977A6	#FFFFFF	#000000	##FFFFFF
##3977A6	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6278A8

Deuteranopia (green-blind)

#536DA5

Tritanopia (blue-blind)

#008287

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3977a6;
/* rgb */ color: rgb(57, 119, 166);
/* oklch */ color: oklch(54.9% 0.097 243.9);

Tailwind

colors: {
  custom: {
    50: '#7b9ec0',
    500: '#3977a6',
    950: '#000000',
  },
}

SCSS

$custom: #3977a6;
$custom-light: #7b9ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#3977a6",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 166
  },
  "hsl": {
    "h": 205.872,
    "s": 48.879,
    "l": 43.725
  },
  "oklch": {
    "l": 0.54943,
    "c": 0.09748,
    "h": 243.9
  },
  "luminance": 0.16817
}

Semantic roles & 50–950 ramp

primary

#3977A6

secondary

#BF997C

accent

#8A4FD8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3977A6

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

Preview Lab → · Contrast checker → · Palette generator →