#3F8BC5#3F8BC5

#3F8BC5 is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.5% C 0.116 H 244.4°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BC5
RGB	rgb(63, 139, 197)
HSL	hsl(206, 54%, 51%)
HSV	hsv(206, 68%, 77%)
CMYK	cmyk(68%, 29.4%, 0%, 22.7%)
CIE-LAB	lab(55.64, -4.80, -36.95)
CIE-LCH	lch(55.64, 37.26, 262.60°)
OKLab	oklab(61.49% -0.0499 -0.1044)
OKLCH	oklch(61.49% 0.116 244.4)
XYZ	xyz(21.3567, 23.5509, 56.2328)
Luminance	0.2355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BC5 #C5793F

analogous

#3FC5BC #3F8BC5 #3F48C5

triadic

#3F8BC5 #C53F8B #8BC53F

tetradic

#3F8BC5 #BC3FC5 #C5793F #48C53F

square

#3F8BC5 #BC3FC5 #C5793F #48C53F

split-complementary

#3F8BC5 #C53F48 #C5BC3F

monochromatic

#204A6A #2E6B99 #3F8BC5 #6EA7D3 #9DC4E1

Accessibility & contrast

On white

3.68

#3F8BC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#3F8BC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BC5

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BC5	#FFFFFF	#000000	##000000
##3F8BC5	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718CC8

Deuteranopia (green-blind)

#5E7FC4

Tritanopia (blue-blind)

#00999F

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f8bc5;
/* rgb */ color: rgb(63, 139, 197);
/* oklch */ color: oklch(61.5% 0.116 244.4);

Tailwind

colors: {
  custom: {
    50: '#83acd7',
    500: '#3f8bc5',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bc5;
$custom-light: #83acd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bc5",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 197
  },
  "hsl": {
    "h": 205.97,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.61485,
    "c": 0.1157,
    "h": 244.4
  },
  "luminance": 0.23553
}

Semantic roles & 50–950 ramp

primary

#3F8BC5

secondary

#CEAC92

accent

#8A4BDD

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #3F8BC5

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

Preview Lab → · Contrast checker → · Palette generator →