#3F879D#3F879D

#3F879D is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 58.6% C 0.079 H 220.7°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F879D
RGB	rgb(63, 135, 157)
HSL	hsl(194, 43%, 43%)
HSV	hsv(194, 60%, 62%)
CMYK	cmyk(59.9%, 14%, 0%, 38.4%)
CIE-LAB	lab(52.75, -15.74, -18.50)
CIE-LCH	lch(52.75, 24.29, 229.61°)
OKLab	oklab(58.64% -0.0598 -0.0514)
OKLCH	oklch(58.64% 0.079 220.7)
XYZ	xyz(16.7973, 20.8174, 35.0247)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F879D #9D553F

analogous

#3F9D84 #3F879D #3F589D

triadic

#3F879D #9D3F87 #879D3F

tetradic

#3F879D #843F9D #9D553F #589D3F

square

#3F879D #843F9D #9D553F #589D3F

split-complementary

#3F879D #9D3F58 #9D843F

monochromatic

#1C3C46 #2D6171 #3F879D #5CA7BD #87BECF

Accessibility & contrast

On white

4.07

#3F879D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#3F879D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F879D

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F879D	#FFFFFF	#000000	##000000
##3F879D	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A849E

Deuteranopia (green-blind)

#6C799D

Tritanopia (blue-blind)

#008E8E

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3f879d;
/* rgb */ color: rgb(63, 135, 157);
/* oklch */ color: oklch(58.6% 0.079 220.7);

Tailwind

colors: {
  custom: {
    50: '#7daaba',
    500: '#3f879d',
    950: '#000000',
  },
}

SCSS

$custom: #3f879d;
$custom-light: #7daaba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f879d",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 157
  },
  "hsl": {
    "h": 194.043,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.58636,
    "c": 0.0789,
    "h": 220.7
  },
  "luminance": 0.20819
}

Semantic roles & 50–950 ramp

primary

#3F879D

secondary

#BA8C7E

accent

#7355D3

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A1011

muted

#7C7F80

Preview Lab

Preview with #3F879D

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

Preview Lab → · Contrast checker → · Palette generator →