#3F758D#3F758D

#3F758D is a mid, moderate cyan. Relative luminance 0.157; OKLCH L 53.5% C 0.069 H 228.8°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F758D
RGB	rgb(63, 117, 141)
HSL	hsl(198, 38%, 40%)
HSV	hsv(198, 55%, 55%)
CMYK	cmyk(55.3%, 17%, 0%, 44.7%)
CIE-LAB	lab(46.58, -10.70, -18.57)
CIE-LCH	lch(46.58, 21.43, 240.05°)
OKLab	oklab(53.51% -0.0451 -0.0516)
OKLCH	oklch(53.51% 0.069 228.8)
XYZ	xyz(13.2171, 15.7013, 27.5283)
Luminance	0.1570 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F758D #8D573F

analogous

#3F8D7E #3F758D #3F4E8D

triadic

#3F758D #8D3F75 #758D3F

tetradic

#3F758D #7E3F8D #8D573F #4E8D3F

square

#3F758D #7E3F8D #8D573F #4E8D3F

split-complementary

#3F758D #8D3F4E #8D7E3F

monochromatic

#192F38 #2C5263 #3F758D #5697B3 #80B1C6

Accessibility & contrast

On white

5.07

#3F758D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#3F758D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F758D

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F758D	#FFFFFF	#000000	##FFFFFF
##3F758D	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69738E

Deuteranopia (green-blind)

#5D6B8D

Tritanopia (blue-blind)

#047C7D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f758d;
/* rgb */ color: rgb(63, 117, 141);
/* oklch */ color: oklch(53.5% 0.069 228.8);

Tailwind

colors: {
  custom: {
    50: '#7a9cae',
    500: '#3f758d',
    950: '#000000',
  },
}

SCSS

$custom: #3f758d;
$custom-light: #7a9cae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f758d",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 141
  },
  "hsl": {
    "h": 198.462,
    "s": 38.235,
    "l": 40
  },
  "oklch": {
    "l": 0.53508,
    "c": 0.06856,
    "h": 228.8
  },
  "luminance": 0.15702
}

Semantic roles & 50–950 ramp

primary

#3F758D

secondary

#B18977

accent

#7D5ACE

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0E10

muted

#7C7E7F

Preview Lab

Preview with #3F758D

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

Preview Lab → · Contrast checker → · Palette generator →