#3B99BB#3B99BB

#3B99BB is a light, moderate cyan. Relative luminance 0.273; OKLCH L 64.2% C 0.100 H 225.7°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#3B99BB
RGB	rgb(59, 153, 187)
HSL	hsl(196, 52%, 48%)
HSV	hsv(196, 68%, 73%)
CMYK	cmyk(68.4%, 18.2%, 0%, 26.7%)
CIE-LAB	lab(59.25, -16.61, -25.69)
CIE-LCH	lch(59.25, 30.59, 237.12°)
OKLab	oklab(64.18% -0.07 -0.0718)
OKLCH	oklch(64.18% 0.1 225.7)
XYZ	xyz(22.1609, 27.2977, 51.1051)
Luminance	0.2730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B99BB #BB5D3B

analogous

#3BBB9D #3B99BB #3B59BB

triadic

#3B99BB #BB3B99 #99BB3B

tetradic

#3B99BB #9D3BBB #BB5D3B #59BB3B

square

#3B99BB #9D3BBB #BB5D3B #59BB3B

split-complementary

#3B99BB #BB3B59 #BB9D3B

monochromatic

#1E4D5E #2C738C #3B99BB #65B2CE #93C9DD

Accessibility & contrast

On white

3.25

#3B99BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#3B99BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B99BB

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B99BB	#FFFFFF	#000000	##000000
##3B99BB	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8696BD

Deuteranopia (green-blind)

#7589BB

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #3b99bb;
/* rgb */ color: rgb(59, 153, 187);
/* oklch */ color: oklch(64.2% 0.100 225.7);

Tailwind

colors: {
  custom: {
    50: '#80b7cf',
    500: '#3b99bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b99bb;
$custom-light: #80b7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b99bb",
  "rgb": {
    "r": 59,
    "g": 153,
    "b": 187
  },
  "hsl": {
    "h": 195.938,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.64182,
    "c": 0.10034,
    "h": 225.7
  },
  "luminance": 0.273
}

Semantic roles & 50–950 ramp

primary

#3B99BB

secondary

#C89A8A

accent

#724CDB

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3B99BB

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

Preview Lab → · Contrast checker → · Palette generator →