#3F9CB7#3F9CB7

#3F9CB7 is a light, moderate cyan. Relative luminance 0.283; OKLCH L 64.9% C 0.095 H 220.4°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F9CB7
RGB	rgb(63, 156, 183)
HSL	hsl(194, 49%, 48%)
HSV	hsv(194, 66%, 72%)
CMYK	cmyk(65.6%, 14.8%, 0%, 28.2%)
CIE-LAB	lab(60.11, -18.86, -22.09)
CIE-LCH	lch(60.11, 29.05, 229.52°)
OKLab	oklab(64.86% -0.0725 -0.0616)
OKLCH	oklch(64.86% 0.095 220.4)
XYZ	xyz(22.4821, 28.2502, 49.0586)
Luminance	0.2825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9CB7 #B75A3F

analogous

#3FB796 #3F9CB7 #3F60B7

triadic

#3F9CB7 #B73F9C #9CB73F

tetradic

#3F9CB7 #963FB7 #B75A3F #60B73F

square

#3F9CB7 #963FB7 #B75A3F #60B73F

split-complementary

#3F9CB7 #B73F60 #B7963F

monochromatic

#204E5C #2F7589 #3F9CB7 #68B5CB #96CBDB

Accessibility & contrast

On white

3.16

#3F9CB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#3F9CB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9CB7

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9CB7	#FFFFFF	#000000	##000000
##3F9CB7	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C98B8

Deuteranopia (green-blind)

#7B8BB7

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3f9cb7;
/* rgb */ color: rgb(63, 156, 183);
/* oklch */ color: oklch(64.9% 0.095 220.4);

Tailwind

colors: {
  custom: {
    50: '#82b9cc',
    500: '#3f9cb7',
    950: '#000000',
  },
}

SCSS

$custom: #3f9cb7;
$custom-light: #82b9cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9cb7",
  "rgb": {
    "r": 63,
    "g": 156,
    "b": 183
  },
  "hsl": {
    "h": 193.5,
    "s": 48.78,
    "l": 48.235
  },
  "oklch": {
    "l": 0.64857,
    "c": 0.09509,
    "h": 220.4
  },
  "luminance": 0.28253
}

Semantic roles & 50–950 ramp

primary

#3F9CB7

secondary

#C6998B

accent

#6E4FD8

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #3F9CB7

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

Preview Lab → · Contrast checker → · Palette generator →