#3F677B#3F677B

#3F677B is a mid, muted cyan. Relative luminance 0.122; OKLCH L 49.2% C 0.055 H 231.1°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX#3F677B
RGBrgb(63, 103, 123)
HSLhsl(200, 32%, 36%)
HSVhsv(200, 49%, 48%)
CMYKcmyk(48.8%, 16.3%, 0%, 51.8%)
CIE-LABlab(41.51, -8.18, -15.54)
CIE-LCHlch(41.51, 17.56, 242.24°)
OKLaboklab(49.24% -0.0347 -0.043)
OKLCHoklch(49.24% 0.055 231.1)
XYZxyz(10.4740, 12.1865, 20.5354)
Luminance0.1219 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F677B #7B533F
analogous
#3F7B71 #3F677B #3F497B
triadic
#3F677B #7B3F67 #677B3F
tetradic
#3F677B #713F7B #7B533F #497B3F
square
#3F677B #713F7B #7B533F #497B3F
split-complementary
#3F677B #7B3F49 #7B713F
monochromatic
#16232A #2A4553 #3F677B #5489A3 #7AA5BB

Accessibility & contrast

On white

6.11
#3F677B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.44
#3F677B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F677B
6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F677B#FFFFFF#000000##FFFFFF
##3F677B1.006.113.446.11
#FFFFFF6.111.0021.001.00
#0000003.4421.001.0021.00
##FFFFFF6.111.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D667C
Deuteranopia (green-blind)
#555F7B
Tritanopia (blue-blind)
#236D6D
Achromatopsia (no color)
#626262

Design tokens & code

CSS
--color: #3f677b;
/* rgb */ color: rgb(63, 103, 123);
/* oklch */ color: oklch(49.2% 0.055 231.1);
Tailwind
colors: {
  custom: {
    50: '#7892a1',
    500: '#3f677b',
    950: '#000000',
  },
}
SCSS
$custom: #3f677b;
$custom-light: #7892a1;
$custom-dark: #000000;
JSON
{
  "hex": "#3f677b",
  "rgb": {
    "r": 63,
    "g": 103,
    "b": 123
  },
  "hsl": {
    "h": 200,
    "s": 32.258,
    "l": 36.471
  },
  "oklch": {
    "l": 0.49243,
    "c": 0.05527,
    "h": 231.1
  },
  "luminance": 0.12187
}

Semantic roles & 50–950 ramp

primary
#3F677B
secondary
#A58271
accent
#825FC8
background
#F7F8F9
surface
#EDF0F2
border
#C8CBCC
text
#090D0F
muted
#7B7D7E

Preview Lab

Preview with #3F677B

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

Preview Lab → · Contrast checker → · Palette generator →

#3F677B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva