#3F8DBD#3F8DBD

#3F8DBD is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.5% C 0.105 H 238.8°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DBD
RGB	rgb(63, 141, 189)
HSL	hsl(203, 50%, 49%)
HSV	hsv(203, 67%, 74%)
CMYK	cmyk(66.7%, 25.4%, 0%, 25.9%)
CIE-LAB	lab(55.87, -8.67, -32.05)
CIE-LCH	lch(55.87, 33.20, 254.87°)
OKLab	oklab(61.55% -0.0545 -0.0902)
OKLCH	oklch(61.55% 0.105 238.8)
XYZ	xyz(20.7565, 23.7785, 51.6300)
Luminance	0.2378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DBD #BD6F3F

analogous

#3FBDAE #3F8DBD #3F4EBD

triadic

#3F8DBD #BD3F8D #8DBD3F

tetradic

#3F8DBD #AE3FBD #BD6F3F #4EBD3F

square

#3F8DBD #AE3FBD #BD6F3F #4EBD3F

split-complementary

#3F8DBD #BD3F4E #BDAE3F

monochromatic

#204961 #306B8F #3F8DBD #6BA8CE #99C3DD

Accessibility & contrast

On white

3.65

#3F8DBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#3F8DBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DBD

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DBD	#FFFFFF	#000000	##000000
##3F8DBD	1.00	3.65	5.76	5.76
#FFFFFF	3.65	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)

#778DBF

Deuteranopia (green-blind)

#6580BC

Tritanopia (blue-blind)

#00999D

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f8dbd;
/* rgb */ color: rgb(63, 141, 189);
/* oklch */ color: oklch(61.5% 0.105 238.8);

Tailwind

colors: {
  custom: {
    50: '#82aed1',
    500: '#3f8dbd',
    950: '#000000',
  },
}

SCSS

$custom: #3f8dbd;
$custom-light: #82aed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8dbd",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 189
  },
  "hsl": {
    "h": 202.857,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.61549,
    "c": 0.10537,
    "h": 238.8
  },
  "luminance": 0.23781
}

Semantic roles & 50–950 ramp

primary

#3F8DBD

secondary

#C9A58F

accent

#834EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3F8DBD

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

Preview Lab → · Contrast checker → · Palette generator →