#3F8EB7#3F8EB7

#3F8EB7 is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.5% C 0.099 H 234.3°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F8EB7
RGB	rgb(63, 142, 183)
HSL	hsl(201, 49%, 48%)
HSV	hsv(201, 66%, 72%)
CMYK	cmyk(65.6%, 22.4%, 0%, 28.2%)
CIE-LAB	lab(55.91, -11.23, -28.58)
CIE-LCH	lch(55.91, 30.70, 248.54°)
OKLab	oklab(61.5% -0.0577 -0.0801)
OKLCH	oklch(61.5% 0.099 234.3)
XYZ	xyz(20.2668, 23.8195, 48.3201)
Luminance	0.2382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8EB7 #B7683F

analogous

#3FB7A4 #3F8EB7 #3F52B7

triadic

#3F8EB7 #B73F8E #8EB73F

tetradic

#3F8EB7 #A43FB7 #B7683F #52B73F

square

#3F8EB7 #A43FB7 #B7683F #52B73F

split-complementary

#3F8EB7 #B73F52 #B7A43F

monochromatic

#20475C #2F6B89 #3F8EB7 #68A9CB #96C3DB

Accessibility & contrast

On white

3.64

#3F8EB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#3F8EB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8EB7

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8EB7	#FFFFFF	#000000	##000000
##3F8EB7	1.00	3.64	5.76	5.76
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8DB9

Deuteranopia (green-blind)

#6A81B6

Tritanopia (blue-blind)

#00999C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f8eb7;
/* rgb */ color: rgb(63, 142, 183);
/* oklch */ color: oklch(61.5% 0.099 234.3);

Tailwind

colors: {
  custom: {
    50: '#81afcc',
    500: '#3f8eb7',
    950: '#000000',
  },
}

SCSS

$custom: #3f8eb7;
$custom-light: #81afcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8eb7",
  "rgb": {
    "r": 63,
    "g": 142,
    "b": 183
  },
  "hsl": {
    "h": 200.5,
    "s": 48.78,
    "l": 48.235
  },
  "oklch": {
    "l": 0.61497,
    "c": 0.09873,
    "h": 234.3
  },
  "luminance": 0.23822
}

Semantic roles & 50–950 ramp

primary

#3F8EB7

secondary

#C6A08B

accent

#7E4FD8

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8EB7

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

Preview Lab → · Contrast checker → · Palette generator →