#3F9AB2#3F9AB2

#3F9AB2 is a light, moderate cyan. Relative luminance 0.274; OKLCH L 64.2% C 0.092 H 218.2°. Best body text is #000000 at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#3F9AB2
RGB	rgb(63, 154, 178)
HSL	hsl(193, 48%, 47%)
HSV	hsv(193, 65%, 70%)
CMYK	cmyk(64.6%, 13.5%, 0%, 30.2%)
CIE-LAB	lab(59.32, -19.37, -20.48)
CIE-LCH	lch(59.32, 28.19, 226.59°)
OKLab	oklab(64.16% -0.0723 -0.057)
OKLCH	oklch(64.16% 0.092 218.2)
XYZ	xyz(21.6381, 27.3800, 46.2554)
Luminance	0.2738 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9AB2 #B2573F

analogous

#3FB291 #3F9AB2 #3F60B2

triadic

#3F9AB2 #B23F9A #9AB23F

tetradic

#3F9AB2 #913FB2 #B2573F #60B23F

square

#3F9AB2 #913FB2 #B2573F #60B23F

split-complementary

#3F9AB2 #B23F60 #B2913F

monochromatic

#1F4C58 #2F7385 #3F9AB2 #66B4C9 #93CAD9

Accessibility & contrast

On white

3.24

#3F9AB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.48

#3F9AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9AB2

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9AB2	#FFFFFF	#000000	##000000
##3F9AB2	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)

#8B96B3

Deuteranopia (green-blind)

#7A8AB2

Tritanopia (blue-blind)

#00A2A2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #3f9ab2;
/* rgb */ color: rgb(63, 154, 178);
/* oklch */ color: oklch(64.2% 0.092 218.2);

Tailwind

colors: {
  custom: {
    50: '#81b8c9',
    500: '#3f9ab2',
    950: '#000000',
  },
}

SCSS

$custom: #3f9ab2;
$custom-light: #81b8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9ab2",
  "rgb": {
    "r": 63,
    "g": 154,
    "b": 178
  },
  "hsl": {
    "h": 192.522,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.64162,
    "c": 0.09208,
    "h": 218.2
  },
  "luminance": 0.27382
}

Semantic roles & 50–950 ramp

primary

#3F9AB2

secondary

#C49589

accent

#6D50D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3F9AB2

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

Preview Lab → · Contrast checker → · Palette generator →