#3F8BBC#3F8BBC

#3F8BBC is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.0% C 0.106 H 240.0°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BBC
RGB	rgb(63, 139, 188)
HSL	hsl(204, 50%, 49%)
HSV	hsv(204, 66%, 74%)
CMYK	cmyk(66.5%, 26.1%, 0%, 26.3%)
CIE-LAB	lab(55.23, -7.86, -32.48)
CIE-LCH	lch(55.23, 33.42, 256.39°)
OKLab	oklab(61.03% -0.0528 -0.0914)
OKLCH	oklch(61.03% 0.106 240)
XYZ	xyz(20.3561, 23.1507, 50.9629)
Luminance	0.2315 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BBC #BC703F

analogous

#3FBCAF #3F8BBC #3F4DBC

triadic

#3F8BBC #BC3F8B #8BBC3F

tetradic

#3F8BBC #AF3FBC #BC703F #4DBC3F

square

#3F8BBC #AF3FBC #BC703F #4DBC3F

split-complementary

#3F8BBC #BC3F4D #BCAF3F

monochromatic

#204760 #30698E #3F8BBC #6BA7CD #99C2DD

Accessibility & contrast

On white

3.73

#3F8BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#3F8BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BBC

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BBC	#FFFFFF	#000000	##000000
##3F8BBC	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#758BBE

Deuteranopia (green-blind)

#637FBB

Tritanopia (blue-blind)

#00979C

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f8bbc;
/* rgb */ color: rgb(63, 139, 188);
/* oklch */ color: oklch(61.0% 0.106 240.0);

Tailwind

colors: {
  custom: {
    50: '#81acd0',
    500: '#3f8bbc',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bbc;
$custom-light: #81acd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bbc",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 188
  },
  "hsl": {
    "h": 203.52,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.61028,
    "c": 0.10556,
    "h": 240
  },
  "luminance": 0.23153
}

Semantic roles & 50–950 ramp

primary

#3F8BBC

secondary

#C9A58E

accent

#854ED9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3F8BBC

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

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