#3F99BA#3F99BA

#3F99BA is a light, moderate cyan. Relative luminance 0.274; OKLCH L 64.3% C 0.098 H 225.7°. Best body text is #000000 at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#3F99BA
RGB	rgb(63, 153, 186)
HSL	hsl(196, 49%, 49%)
HSV	hsv(196, 66%, 73%)
CMYK	cmyk(66.1%, 17.7%, 0%, 27.1%)
CIE-LAB	lab(59.33, -16.30, -25.00)
CIE-LCH	lch(59.33, 29.84, 236.90°)
OKLab	oklab(64.26% -0.0682 -0.0698)
OKLCH	oklch(64.26% 0.098 225.7)
XYZ	xyz(22.3005, 27.3820, 50.5548)
Luminance	0.2738 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99BA #BA603F

analogous

#3FBA9E #3F99BA #3F5BBA

triadic

#3F99BA #BA3F99 #99BA3F

tetradic

#3F99BA #9E3FBA #BA603F #5BBA3F

square

#3F99BA #9E3FBA #BA603F #5BBA3F

split-complementary

#3F99BA #BA3F5B #BA9E3F

monochromatic

#204E5F #30738C #3F99BA #6AB2CC #97CADC

Accessibility & contrast

On white

3.24

#3F99BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.48

#3F99BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99BA

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99BA	#FFFFFF	#000000	##000000
##3F99BA	1.00	3.24	6.48	6.48
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.48	21.00	1.00	1.00
##000000	6.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8796BC

Deuteranopia (green-blind)

#7689BA

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #3f99ba;
/* rgb */ color: rgb(63, 153, 186);
/* oklch */ color: oklch(64.3% 0.098 225.7);

Tailwind

colors: {
  custom: {
    50: '#82b7ce',
    500: '#3f99ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f99ba;
$custom-light: #82b7ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99ba",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 186
  },
  "hsl": {
    "h": 196.098,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.64264,
    "c": 0.09758,
    "h": 225.7
  },
  "luminance": 0.27384
}

Semantic roles & 50–950 ramp

primary

#3F99BA

secondary

#C89D8D

accent

#744FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #3F99BA

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

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