#3F9FBB#3F9FBB

#3F9FBB is a light, moderate cyan. Relative luminance 0.294; OKLCH L 65.8% C 0.097 H 220.6°. Best body text is #000000 at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F9FBB
RGB	rgb(63, 159, 187)
HSL	hsl(194, 50%, 49%)
HSV	hsv(194, 66%, 73%)
CMYK	cmyk(66.3%, 15%, 0%, 26.7%)
CIE-LAB	lab(61.17, -19.18, -22.73)
CIE-LCH	lch(61.17, 29.74, 229.85°)
OKLab	oklab(65.75% -0.0741 -0.0634)
OKLCH	oklch(65.75% 0.097 220.6)
XYZ	xyz(23.4140, 29.4384, 51.4523)
Luminance	0.2944 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9FBB #BB5B3F

analogous

#3FBB99 #3F9FBB #3F61BB

triadic

#3F9FBB #BB3F9F #9FBB3F

tetradic

#3F9FBB #993FBB #BB5B3F #61BB3F

square

#3F9FBB #993FBB #BB5B3F #61BB3F

split-complementary

#3F9FBB #BB3F61 #BB993F

monochromatic

#20515F #30788D #3F9FBB #6AB7CD #98CDDC

Accessibility & contrast

On white

3.05

#3F9FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.89

#3F9FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9FBB

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9FBB	#FFFFFF	#000000	##000000
##3F9FBB	1.00	3.05	6.89	6.89
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.89	21.00	1.00	1.00
##000000	6.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E9BBD

Deuteranopia (green-blind)

#7D8EBB

Tritanopia (blue-blind)

#00A8A8

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9fbb;
/* rgb */ color: rgb(63, 159, 187);
/* oklch */ color: oklch(65.8% 0.097 220.6);

Tailwind

colors: {
  custom: {
    50: '#82bbcf',
    500: '#3f9fbb',
    950: '#000000',
  },
}

SCSS

$custom: #3f9fbb;
$custom-light: #82bbcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9fbb",
  "rgb": {
    "r": 63,
    "g": 159,
    "b": 187
  },
  "hsl": {
    "h": 193.548,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.6575,
    "c": 0.09748,
    "h": 220.6
  },
  "luminance": 0.29441
}

Semantic roles & 50–950 ramp

primary

#3F9FBB

secondary

#C89B8E

accent

#6E4FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1213

muted

#7D8182

Preview Lab

Preview with #3F9FBB

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

Preview Lab → · Contrast checker → · Palette generator →