#3F8BB7#3F8BB7

#3F8BB7 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.8% C 0.100 H 237.1°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BB7
RGB	rgb(63, 139, 183)
HSL	hsl(202, 49%, 48%)
HSV	hsv(202, 66%, 72%)
CMYK	cmyk(65.6%, 24%, 0%, 28.2%)
CIE-LAB	lab(55.01, -9.54, -29.97)
CIE-LCH	lch(55.01, 31.45, 252.34°)
OKLab	oklab(60.78% -0.0545 -0.0842)
OKLCH	oklch(60.78% 0.1 237.1)
XYZ	xyz(19.8265, 22.9388, 48.1733)
Luminance	0.2294 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BB7 #B76B3F

analogous

#3FB7A7 #3F8BB7 #3F4FB7

triadic

#3F8BB7 #B73F8B #8BB73F

tetradic

#3F8BB7 #A73FB7 #B76B3F #4FB73F

square

#3F8BB7 #A73FB7 #B76B3F #4FB73F

split-complementary

#3F8BB7 #B73F4F #B7A73F

monochromatic

#20465C #2F6889 #3F8BB7 #68A7CB #96C1DB

Accessibility & contrast

On white

3.76

#3F8BB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#3F8BB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BB7

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BB7	#FFFFFF	#000000	##000000
##3F8BB7	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#768AB9

Deuteranopia (green-blind)

#667EB6

Tritanopia (blue-blind)

#00969A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f8bb7;
/* rgb */ color: rgb(63, 139, 183);
/* oklch */ color: oklch(60.8% 0.100 237.1);

Tailwind

colors: {
  custom: {
    50: '#81accc',
    500: '#3f8bb7',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bb7;
$custom-light: #81accc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bb7",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 183
  },
  "hsl": {
    "h": 202,
    "s": 48.78,
    "l": 48.235
  },
  "oklch": {
    "l": 0.60784,
    "c": 0.10026,
    "h": 237.1
  },
  "luminance": 0.22941
}

Semantic roles & 50–950 ramp

primary

#3F8BB7

secondary

#C6A18B

accent

#824FD8

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8BB7

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

Preview Lab → · Contrast checker → · Palette generator →