#3997C7#3997C7

#3997C7 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 64.2% C 0.113 H 234.9°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3997C7
RGB	rgb(57, 151, 199)
HSL	hsl(200, 56%, 50%)
HSV	hsv(200, 71%, 78%)
CMYK	cmyk(71.4%, 24.1%, 0%, 22%)
CIE-LAB	lab(59.09, -11.82, -32.70)
CIE-LCH	lch(59.09, 34.77, 250.13°)
OKLab	oklab(64.2% -0.0648 -0.092)
OKLCH	oklch(64.2% 0.113 234.9)
XYZ	xyz(23.0587, 27.1240, 58.0420)
Luminance	0.2713 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3997C7 #C76939

analogous

#39C7B0 #3997C7 #3950C7

triadic

#3997C7 #C73997 #97C739

tetradic

#3997C7 #B039C7 #C76939 #50C739

square

#3997C7 #B039C7 #C76939 #50C739

split-complementary

#3997C7 #C73950 #C7B039

monochromatic

#1D4F68 #2B7398 #3997C7 #69B0D4 #98C9E2

Accessibility & contrast

On white

3.27

#3997C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#3997C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3997C7

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3997C7	#FFFFFF	#000000	##000000
##3997C7	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8096C9

Deuteranopia (green-blind)

#6C88C6

Tritanopia (blue-blind)

#00A4A7

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3997c7;
/* rgb */ color: rgb(57, 151, 199);
/* oklch */ color: oklch(64.2% 0.113 234.9);

Tailwind

colors: {
  custom: {
    50: '#81b5d8',
    500: '#3997c7',
    950: '#000000',
  },
}

SCSS

$custom: #3997c7;
$custom-light: #81b5d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3997c7",
  "rgb": {
    "r": 57,
    "g": 151,
    "b": 199
  },
  "hsl": {
    "h": 200.282,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.64202,
    "c": 0.11253,
    "h": 234.9
  },
  "luminance": 0.27127
}

Semantic roles & 50–950 ramp

primary

#3997C7

secondary

#CEA48E

accent

#7C49DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3997C7

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

Preview Lab → · Contrast checker → · Palette generator →