#3F8BB3#3F8BB3

#3F8BB3 is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.6% C 0.096 H 234.5°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BB3
RGB	rgb(63, 139, 179)
HSL	hsl(201, 48%, 47%)
HSV	hsv(201, 65%, 70%)
CMYK	cmyk(64.8%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(54.84, -10.87, -27.95)
CIE-LCH	lch(54.84, 29.99, 248.74°)
OKLab	oklab(60.59% -0.0559 -0.0783)
OKLCH	oklch(60.59% 0.096 234.5)
XYZ	xyz(19.4160, 22.7747, 46.0118)
Luminance	0.2278 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BB3 #B3673F

analogous

#3FB3A1 #3F8BB3 #3F51B3

triadic

#3F8BB3 #B33F8B #8BB33F

tetradic

#3F8BB3 #A13FB3 #B3673F #51B33F

square

#3F8BB3 #A13FB3 #B3673F #51B33F

split-complementary

#3F8BB3 #B33F51 #B3A13F

monochromatic

#1F4558 #2F6886 #3F8BB3 #66A7C9 #93C1D9

Accessibility & contrast

On white

3.78

#3F8BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#3F8BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BB3

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BB3	#FFFFFF	#000000	##000000
##3F8BB3	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788AB5

Deuteranopia (green-blind)

#687EB2

Tritanopia (blue-blind)

#009698

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3f8bb3;
/* rgb */ color: rgb(63, 139, 179);
/* oklch */ color: oklch(60.6% 0.096 234.5);

Tailwind

colors: {
  custom: {
    50: '#80acca',
    500: '#3f8bb3',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bb3;
$custom-light: #80acca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bb3",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 200.69,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.60593,
    "c": 0.09624,
    "h": 234.5
  },
  "luminance": 0.22777
}

Semantic roles & 50–950 ramp

primary

#3F8BB3

secondary

#C49E89

accent

#7F50D8

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8BB3

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

Preview Lab → · Contrast checker → · Palette generator →