#3F8BB0#3F8BB0

#3F8BB0 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.5% C 0.093 H 232.4°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BB0
RGB	rgb(63, 139, 176)
HSL	hsl(200, 47%, 47%)
HSV	hsv(200, 64%, 69%)
CMYK	cmyk(64.2%, 21%, 0%, 31%)
CIE-LAB	lab(54.71, -11.86, -26.42)
CIE-LCH	lch(54.71, 28.96, 245.83°)
OKLab	oklab(60.45% -0.057 -0.074)
OKLCH	oklch(60.45% 0.093 232.4)
XYZ	xyz(19.1159, 22.6546, 44.4312)
Luminance	0.2266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BB0 #B0643F

analogous

#3FB09D #3F8BB0 #3F53B0

triadic

#3F8BB0 #B03F8B #8BB03F

tetradic

#3F8BB0 #9D3FB0 #B0643F #53B03F

square

#3F8BB0 #9D3FB0 #B0643F #53B03F

split-complementary

#3F8BB0 #B03F53 #B09D3F

monochromatic

#1F4456 #2F6783 #3F8BB0 #65A7C8 #92C1D8

Accessibility & contrast

On white

3.80

#3F8BB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#3F8BB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BB0

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BB0	#FFFFFF	#000000	##000000
##3F8BB0	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7989B2

Deuteranopia (green-blind)

#697EAF

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3f8bb0;
/* rgb */ color: rgb(63, 139, 176);
/* oklch */ color: oklch(60.5% 0.093 232.4);

Tailwind

colors: {
  custom: {
    50: '#80acc7',
    500: '#3f8bb0',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bb0;
$custom-light: #80acc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bb0",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 176
  },
  "hsl": {
    "h": 199.646,
    "s": 47.28,
    "l": 46.863
  },
  "oklch": {
    "l": 0.60452,
    "c": 0.09337,
    "h": 232.4
  },
  "luminance": 0.22657
}

Semantic roles & 50–950 ramp

primary

#3F8BB0

secondary

#C39B88

accent

#7D51D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8BB0

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

Preview Lab → · Contrast checker → · Palette generator →