#3F8CB7#3F8CB7

#3F8CB7 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.0% C 0.100 H 236.1°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F8CB7
RGB	rgb(63, 140, 183)
HSL	hsl(202, 49%, 48%)
HSV	hsv(202, 66%, 72%)
CMYK	cmyk(65.6%, 23.5%, 0%, 28.2%)
CIE-LAB	lab(55.31, -10.11, -29.50)
CIE-LCH	lch(55.31, 31.19, 251.09°)
OKLab	oklab(61.02% -0.0555 -0.0828)
OKLCH	oklch(61.02% 0.1 236.1)
XYZ	xyz(19.9719, 23.2298, 48.2218)
Luminance	0.2323 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8CB7 #B76A3F

analogous

#3FB7A6 #3F8CB7 #3F50B7

triadic

#3F8CB7 #B73F8C #8CB73F

tetradic

#3F8CB7 #A63FB7 #B76A3F #50B73F

square

#3F8CB7 #A63FB7 #B76A3F #50B73F

split-complementary

#3F8CB7 #B73F50 #B7A63F

monochromatic

#20465C #2F6989 #3F8CB7 #68A8CB #96C2DB

Accessibility & contrast

On white

3.72

#3F8CB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#3F8CB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CB7

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8CB7	#FFFFFF	#000000	##000000
##3F8CB7	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788BB9

Deuteranopia (green-blind)

#677FB6

Tritanopia (blue-blind)

#00979A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f8cb7;
/* rgb */ color: rgb(63, 140, 183);
/* oklch */ color: oklch(61.0% 0.100 236.1);

Tailwind

colors: {
  custom: {
    50: '#81adcc',
    500: '#3f8cb7',
    950: '#000000',
  },
}

SCSS

$custom: #3f8cb7;
$custom-light: #81adcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8cb7",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 183
  },
  "hsl": {
    "h": 201.5,
    "s": 48.78,
    "l": 48.235
  },
  "oklch": {
    "l": 0.61021,
    "c": 0.09972,
    "h": 236.1
  },
  "luminance": 0.23232
}

Semantic roles & 50–950 ramp

primary

#3F8CB7

secondary

#C6A18B

accent

#814FD8

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8CB7

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

Preview Lab → · Contrast checker → · Palette generator →