#3F98BB#3F98BB

#3F98BB is a light, moderate cyan. Relative luminance 0.271; OKLCH L 64.1% C 0.099 H 227.4°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#3F98BB
RGB	rgb(63, 152, 187)
HSL	hsl(197, 50%, 49%)
HSV	hsv(197, 66%, 73%)
CMYK	cmyk(66.3%, 18.7%, 0%, 26.7%)
CIE-LAB	lab(59.07, -15.43, -25.96)
CIE-LCH	lch(59.07, 30.20, 239.27°)
OKLab	oklab(64.07% -0.0667 -0.0726)
OKLCH	oklch(64.07% 0.099 227.4)
XYZ	xyz(22.2442, 27.0987, 51.0623)
Luminance	0.2710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F98BB #BB623F

analogous

#3FBBA0 #3F98BB #3F5ABB

triadic

#3F98BB #BB3F98 #98BB3F

tetradic

#3F98BB #A03FBB #BB623F #5ABB3F

square

#3F98BB #A03FBB #BB623F #5ABB3F

split-complementary

#3F98BB #BB3F5A #BBA03F

monochromatic

#204E5F #30738D #3F98BB #6AB1CD #98C9DC

Accessibility & contrast

On white

3.27

#3F98BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#3F98BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F98BB

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F98BB	#FFFFFF	#000000	##000000
##3F98BB	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8595BD

Deuteranopia (green-blind)

#7489BB

Tritanopia (blue-blind)

#00A2A3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3f98bb;
/* rgb */ color: rgb(63, 152, 187);
/* oklch */ color: oklch(64.1% 0.099 227.4);

Tailwind

colors: {
  custom: {
    50: '#82b6cf',
    500: '#3f98bb',
    950: '#000000',
  },
}

SCSS

$custom: #3f98bb;
$custom-light: #82b6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f98bb",
  "rgb": {
    "r": 63,
    "g": 152,
    "b": 187
  },
  "hsl": {
    "h": 196.935,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.64069,
    "c": 0.09862,
    "h": 227.4
  },
  "luminance": 0.27101
}

Semantic roles & 50–950 ramp

primary

#3F98BB

secondary

#C89E8E

accent

#764FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #3F98BB

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

Preview Lab → · Contrast checker → · Palette generator →