#3F8CB2#3F8CB2

#3F8CB2 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.8% C 0.095 H 232.8°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F8CB2
RGB	rgb(63, 140, 178)
HSL	hsl(200, 48%, 47%)
HSV	hsv(200, 65%, 70%)
CMYK	cmyk(64.6%, 21.3%, 0%, 30.2%)
CIE-LAB	lab(55.10, -11.76, -26.97)
CIE-LCH	lch(55.10, 29.43, 246.44°)
OKLab	oklab(60.79% -0.0573 -0.0756)
OKLCH	oklch(60.79% 0.095 232.8)
XYZ	xyz(19.4607, 23.0253, 45.5296)
Luminance	0.2303 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8CB2 #B2653F

analogous

#3FB29F #3F8CB2 #3F53B2

triadic

#3F8CB2 #B23F8C #8CB23F

tetradic

#3F8CB2 #9F3FB2 #B2653F #53B23F

square

#3F8CB2 #9F3FB2 #B2653F #53B23F

split-complementary

#3F8CB2 #B23F53 #B29F3F

monochromatic

#1F4558 #2F6885 #3F8CB2 #66A8C9 #93C2D9

Accessibility & contrast

On white

3.75

#3F8CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#3F8CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CB2

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8CB2	#FFFFFF	#000000	##000000
##3F8CB2	1.00	3.75	5.61	5.61
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798AB4

Deuteranopia (green-blind)

#697FB1

Tritanopia (blue-blind)

#009699

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f8cb2;
/* rgb */ color: rgb(63, 140, 178);
/* oklch */ color: oklch(60.8% 0.095 232.8);

Tailwind

colors: {
  custom: {
    50: '#80adc9',
    500: '#3f8cb2',
    950: '#000000',
  },
}

SCSS

$custom: #3f8cb2;
$custom-light: #80adc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8cb2",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 178
  },
  "hsl": {
    "h": 199.826,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.60785,
    "c": 0.09484,
    "h": 232.8
  },
  "luminance": 0.23027
}

Semantic roles & 50–950 ramp

primary

#3F8CB2

secondary

#C49C89

accent

#7D50D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8CB2

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

Preview Lab → · Contrast checker → · Palette generator →