#3F8DBC#3F8DBC

#3F8DBC is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.5% C 0.104 H 238.3°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DBC
RGB	rgb(63, 141, 188)
HSL	hsl(203, 50%, 49%)
HSV	hsv(203, 66%, 74%)
CMYK	cmyk(66.5%, 25%, 0%, 26.3%)
CIE-LAB	lab(55.82, -9.00, -31.55)
CIE-LCH	lch(55.82, 32.81, 254.08°)
OKLab	oklab(61.5% -0.0549 -0.0887)
OKLCH	oklch(61.5% 0.104 238.3)
XYZ	xyz(20.6484, 23.7352, 51.0604)
Luminance	0.2374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DBC #BC6E3F

analogous

#3FBCAD #3F8DBC #3F4FBC

triadic

#3F8DBC #BC3F8D #8DBC3F

tetradic

#3F8DBC #AD3FBC #BC6E3F #4FBC3F

square

#3F8DBC #AD3FBC #BC6E3F #4FBC3F

split-complementary

#3F8DBC #BC3F4F #BCAD3F

monochromatic

#204860 #306B8E #3F8DBC #6BA8CD #99C3DD

Accessibility & contrast

On white

3.65

#3F8DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#3F8DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DBC

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DBC	#FFFFFF	#000000	##000000
##3F8DBC	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778DBE

Deuteranopia (green-blind)

#6680BB

Tritanopia (blue-blind)

#00999D

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f8dbc;
/* rgb */ color: rgb(63, 141, 188);
/* oklch */ color: oklch(61.5% 0.104 238.3);

Tailwind

colors: {
  custom: {
    50: '#81aed0',
    500: '#3f8dbc',
    950: '#000000',
  },
}

SCSS

$custom: #3f8dbc;
$custom-light: #81aed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8dbc",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 188
  },
  "hsl": {
    "h": 202.56,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.615,
    "c": 0.10432,
    "h": 238.3
  },
  "luminance": 0.23737
}

Semantic roles & 50–950 ramp

primary

#3F8DBC

secondary

#C9A48E

accent

#834ED9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3F8DBC

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

Preview Lab → · Contrast checker → · Palette generator →