#3F8FBC#3F8FBC

#3F8FBC is a mid, moderate cyan. Relative luminance 0.243; OKLCH L 62.0% C 0.103 H 236.5°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F8FBC
RGB	rgb(63, 143, 188)
HSL	hsl(202, 50%, 49%)
HSV	hsv(202, 66%, 74%)
CMYK	cmyk(66.5%, 23.9%, 0%, 26.3%)
CIE-LAB	lab(56.42, -10.13, -30.63)
CIE-LCH	lch(56.42, 32.26, 251.70°)
OKLab	oklab(61.97% -0.057 -0.086)
OKLCH	oklch(61.97% 0.103 236.5)
XYZ	xyz(20.9459, 24.3303, 51.1595)
Luminance	0.2433 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8FBC #BC6C3F

analogous

#3FBCAB #3F8FBC #3F51BC

triadic

#3F8FBC #BC3F8F #8FBC3F

tetradic

#3F8FBC #AB3FBC #BC6C3F #51BC3F

square

#3F8FBC #AB3FBC #BC6C3F #51BC3F

split-complementary

#3F8FBC #BC3F51 #BCAB3F

monochromatic

#204960 #306C8E #3F8FBC #6BAACD #99C4DD

Accessibility & contrast

On white

3.58

#3F8FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#3F8FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8FBC

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8FBC	#FFFFFF	#000000	##000000
##3F8FBC	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8EBE

Deuteranopia (green-blind)

#6982BB

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8fbc;
/* rgb */ color: rgb(63, 143, 188);
/* oklch */ color: oklch(62.0% 0.103 236.5);

Tailwind

colors: {
  custom: {
    50: '#81afd0',
    500: '#3f8fbc',
    950: '#000000',
  },
}

SCSS

$custom: #3f8fbc;
$custom-light: #81afd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8fbc",
  "rgb": {
    "r": 63,
    "g": 143,
    "b": 188
  },
  "hsl": {
    "h": 201.6,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.61972,
    "c": 0.10318,
    "h": 236.5
  },
  "luminance": 0.24333
}

Semantic roles & 50–950 ramp

primary

#3F8FBC

secondary

#C9A38E

accent

#804ED9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3F8FBC

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

Preview Lab → · Contrast checker → · Palette generator →