#1C666B#1C666B

#1C666B is a mid, moderate teal. Relative luminance 0.108; OKLCH L 46.9% C 0.070 H 201.7°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX#1C666B
RGBrgb(28, 102, 107)
HSLhsl(184, 59%, 26%)
HSVhsv(184, 74%, 42%)
CMYKcmyk(73.8%, 4.7%, 0%, 58%)
CIE-LABlab(39.26, -20.14, -9.33)
CIE-LCHlch(39.26, 22.19, 204.86°)
OKLaboklab(46.87% -0.0652 -0.0259)
OKLCHoklch(46.87% 0.07 201.7)
XYZxyz(7.8829, 10.8102, 15.5782)
Luminance0.1081 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C666B #6B211C
analogous
#1C6B49 #1C666B #1C3F6B
triadic
#1C666B #6B1C66 #666B1C
tetradic
#1C666B #491C6B #6B211C #3F6B1C
square
#1C666B #491C6B #6B211C #3F6B1C
split-complementary
#1C666B #6B1C3F #6B491C
monochromatic
#061718 #0F383A #1C666B #29949C #37C1CB

Accessibility & contrast

On white

6.64
#1C666B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.16
#1C666B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C666B
6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C666B#FFFFFF#000000##FFFFFF
##1C666B1.006.643.166.64
#FFFFFF6.641.0021.001.00
#0000003.1621.001.0021.00
##FFFFFF6.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5E616B
Deuteranopia (green-blind)
#52596B
Tritanopia (blue-blind)
#006A67
Achromatopsia (no color)
#5C5C5C

Design tokens & code

CSS
--color: #1c666b;
/* rgb */ color: rgb(28, 102, 107);
/* oklch */ color: oklch(46.9% 0.070 201.7);
Tailwind
colors: {
  custom: {
    50: '#669295',
    500: '#1c666b',
    950: '#000000',
  },
}
SCSS
$custom: #1c666b;
$custom-light: #669295;
$custom-dark: #000000;
JSON
{
  "hex": "#1c666b",
  "rgb": {
    "r": 28,
    "g": 102,
    "b": 107
  },
  "hsl": {
    "h": 183.797,
    "s": 58.519,
    "l": 26.471
  },
  "oklch": {
    "l": 0.4687,
    "c": 0.07014,
    "h": 201.7
  },
  "luminance": 0.10811
}

Semantic roles & 50–950 ramp

primary
#1C666B
secondary
#A04943
accent
#5046E2
background
#F6F8F9
surface
#EBF0F1
border
#C6CBCB
text
#060D0D
muted
#7A7D7E

Preview Lab

Preview with #1C666B

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

Preview Lab → · Contrast checker → · Palette generator →

#1C666B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva