#3F8BC7#3F8BC7

#3F8BC7 is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.6% C 0.118 H 245.3°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BC7
RGB	rgb(63, 139, 199)
HSL	hsl(206, 55%, 51%)
HSV	hsv(206, 68%, 78%)
CMYK	cmyk(68.3%, 30.2%, 0%, 22%)
CIE-LAB	lab(55.73, -4.11, -37.94)
CIE-LCH	lch(55.73, 38.16, 263.81°)
OKLab	oklab(61.59% -0.0493 -0.1072)
OKLCH	oklch(61.59% 0.118 245.3)
XYZ	xyz(21.5874, 23.6432, 57.4477)
Luminance	0.2365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BC7 #C77B3F

analogous

#3FC7BF #3F8BC7 #3F47C7

triadic

#3F8BC7 #C73F8B #8BC73F

tetradic

#3F8BC7 #BF3FC7 #C77B3F #47C73F

square

#3F8BC7 #BF3FC7 #C77B3F #47C73F

split-complementary

#3F8BC7 #C73F47 #C7BF3F

monochromatic

#204A6C #2D6B9B #3F8BC7 #6EA8D5 #9EC4E3

Accessibility & contrast

On white

3.67

#3F8BC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#3F8BC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BC7

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BC7	#FFFFFF	#000000	##000000
##3F8BC7	1.00	3.67	5.73	5.73
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#708DCA

Deuteranopia (green-blind)

#5D80C6

Tritanopia (blue-blind)

#0099A0

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f8bc7;
/* rgb */ color: rgb(63, 139, 199);
/* oklch */ color: oklch(61.6% 0.118 245.3);

Tailwind

colors: {
  custom: {
    50: '#83acd8',
    500: '#3f8bc7',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bc7;
$custom-light: #83acd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bc7",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 199
  },
  "hsl": {
    "h": 206.471,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.6159,
    "c": 0.11803,
    "h": 245.3
  },
  "luminance": 0.23646
}

Semantic roles & 50–950 ramp

primary

#3F8BC7

secondary

#CFAD93

accent

#8B4ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #3F8BC7

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

Preview Lab → · Contrast checker → · Palette generator →