#123B6C#123B6C

#123B6C is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.3% C 0.096 H 255.2°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX#123B6C
RGBrgb(18, 59, 108)
HSLhsl(213, 71%, 25%)
HSVhsv(213, 83%, 42%)
CMYKcmyk(83.3%, 45.4%, 0%, 57.6%)
CIE-LABlab(24.76, 5.44, -32.52)
CIE-LCHlch(24.76, 32.97, 279.51°)
OKLaboklab(35.27% -0.0246 -0.0931)
OKLCHoklch(35.27% 0.096 255.2)
XYZxyz(4.5192, 4.3387, 14.7837)
Luminance0.0434 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123B6C #6C4312
analogous
#12686C #123B6C #16126C
triadic
#123B6C #6C123B #3B6C12
tetradic
#123B6C #6C1268 #6C4312 #126C16
square
#123B6C #6C1268 #6C4312 #126C16
split-complementary
#123B6C #6C1612 #686C12
monochromatic
#040E1A #091E38 #123B6C #1B58A0 #2374D5

Accessibility & contrast

On white

11.24
#123B6C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.87
#123B6C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B6C
11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123B6C#FFFFFF#000000##FFFFFF
##123B6C1.0011.241.8711.24
#FFFFFF11.241.0021.001.00
#0000001.8721.001.0021.00
##FFFFFF11.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#223F6E
Deuteranopia (green-blind)
#11376B
Tritanopia (blue-blind)
#00474E
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #123b6c;
/* rgb */ color: rgb(18, 59, 108);
/* oklch */ color: oklch(35.3% 0.096 255.2);
Tailwind
colors: {
  custom: {
    50: '#607096',
    500: '#123b6c',
    950: '#000000',
  },
}
SCSS
$custom: #123b6c;
$custom-light: #607096;
$custom-dark: #000000;
JSON
{
  "hex": "#123b6c",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 108
  },
  "hsl": {
    "h": 212.667,
    "s": 71.429,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35274,
    "c": 0.09633,
    "h": 255.2
  },
  "luminance": 0.04339
}

Semantic roles & 50–950 ramp

primary
#123B6C
secondary
#A37236
accent
#9C3AEE
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#05070D
muted
#7A7A7E

Preview Lab

Preview with #123B6C

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

Preview Lab → · Contrast checker → · Palette generator →

#123B6C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva