#3997BE#3997BE

#3997BE is a light, moderate cyan. Relative luminance 0.267; OKLCH L 63.8% C 0.104 H 229.3°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#3997BE
RGB	rgb(57, 151, 190)
HSL	hsl(198, 54%, 48%)
HSV	hsv(198, 70%, 75%)
CMYK	cmyk(70%, 20.5%, 0%, 25.5%)
CIE-LAB	lab(58.71, -14.84, -28.21)
CIE-LCH	lch(58.71, 31.88, 242.26°)
OKLab	oklab(63.78% -0.068 -0.0791)
OKLCH	oklch(63.78% 0.104 229.3)
XYZ	xyz(22.0445, 26.7183, 52.7006)
Luminance	0.2672 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3997BE #BE6039

analogous

#39BEA2 #3997BE #3954BE

triadic

#3997BE #BE3997 #97BE39

tetradic

#3997BE #A239BE #BE6039 #54BE39

square

#3997BE #A239BE #BE6039 #54BE39

split-complementary

#3997BE #BE3954 #BEA239

monochromatic

#1D4C60 #2B728F #3997BE #64B1D0 #93C8DF

Accessibility & contrast

On white

3.31

#3997BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#3997BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3997BE

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3997BE	#FFFFFF	#000000	##000000
##3997BE	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8395C0

Deuteranopia (green-blind)

#7187BD

Tritanopia (blue-blind)

#00A2A4

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #3997be;
/* rgb */ color: rgb(57, 151, 190);
/* oklch */ color: oklch(63.8% 0.104 229.3);

Tailwind

colors: {
  custom: {
    50: '#80b5d1',
    500: '#3997be',
    950: '#000000',
  },
}

SCSS

$custom: #3997be;
$custom-light: #80b5d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3997be",
  "rgb": {
    "r": 57,
    "g": 151,
    "b": 190
  },
  "hsl": {
    "h": 197.594,
    "s": 53.846,
    "l": 48.431
  },
  "oklch": {
    "l": 0.63777,
    "c": 0.10429,
    "h": 229.3
  },
  "luminance": 0.26721
}

Semantic roles & 50–950 ramp

primary

#3997BE

secondary

#CA9C89

accent

#764BDD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #3997BE

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

Preview Lab → · Contrast checker → · Palette generator →