#3B99BF#3B99BF

#3B99BF is a light, moderate cyan. Relative luminance 0.275; OKLCH L 64.4% C 0.104 H 228.5°. Best body text is #000000 at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#3B99BF
RGB	rgb(59, 153, 191)
HSL	hsl(197, 53%, 49%)
HSV	hsv(197, 69%, 75%)
CMYK	cmyk(69.1%, 19.9%, 0%, 25.1%)
CIE-LAB	lab(59.41, -15.30, -27.70)
CIE-LCH	lch(59.41, 31.64, 241.09°)
OKLab	oklab(64.36% -0.0686 -0.0776)
OKLCH	oklch(64.36% 0.104 228.5)
XYZ	xyz(22.5951, 27.4714, 53.3918)
Luminance	0.2747 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B99BF #BF613B

analogous

#3BBFA3 #3B99BF #3B57BF

triadic

#3B99BF #BF3B99 #99BF3B

tetradic

#3B99BF #A33BBF #BF613B #57BF3B

square

#3B99BF #A33BBF #BF613B #57BF3B

split-complementary

#3B99BF #BF3B57 #BFA33B

monochromatic

#1E4E61 #2D7490 #3B99BF #67B2D0 #96CADF

Accessibility & contrast

On white

3.23

#3B99BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.49

#3B99BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B99BF

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B99BF	#FFFFFF	#000000	##000000
##3B99BF	1.00	3.23	6.49	6.49
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.49	21.00	1.00	1.00
##000000	6.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8596C1

Deuteranopia (green-blind)

#7389BE

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #3b99bf;
/* rgb */ color: rgb(59, 153, 191);
/* oklch */ color: oklch(64.4% 0.104 228.5);

Tailwind

colors: {
  custom: {
    50: '#81b7d2',
    500: '#3b99bf',
    950: '#000000',
  },
}

SCSS

$custom: #3b99bf;
$custom-light: #81b7d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3b99bf",
  "rgb": {
    "r": 59,
    "g": 153,
    "b": 191
  },
  "hsl": {
    "h": 197.273,
    "s": 52.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.64362,
    "c": 0.10355,
    "h": 228.5
  },
  "luminance": 0.27474
}

Semantic roles & 50–950 ramp

primary

#3B99BF

secondary

#CA9E8C

accent

#754CDC

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #3B99BF

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

Preview Lab → · Contrast checker → · Palette generator →