#123A6C#123A6C

#123A6C is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 35.0% C 0.098 H 256.0°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX#123A6C
RGBrgb(18, 58, 108)
HSLhsl(213, 71%, 25%)
HSVhsv(213, 83%, 42%)
CMYKcmyk(83.3%, 46.3%, 0%, 57.6%)
CIE-LABlab(24.44, 6.15, -33.03)
CIE-LCHlch(24.44, 33.60, 280.54°)
OKLaboklab(35.03% -0.0237 -0.0947)
OKLCHoklch(35.03% 0.098 256)
XYZxyz(4.4683, 4.2369, 14.7668)
Luminance0.0424 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123A6C #6C4412
analogous
#12676C #123A6C #17126C
triadic
#123A6C #6C123A #3A6C12
tetradic
#123A6C #6C1267 #6C4412 #126C17
square
#123A6C #6C1267 #6C4412 #126C17
split-complementary
#123A6C #6C1712 #676C12
monochromatic
#040E1A #091E38 #123A6C #1B56A0 #2372D5

Accessibility & contrast

On white

11.37
#123A6C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.85
#123A6C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A6C
11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123A6C#FFFFFF#000000##FFFFFF
##123A6C1.0011.371.8511.37
#FFFFFF11.371.0021.001.00
#0000001.8521.001.0021.00
##FFFFFF11.371.0021.001.00

Color blindness preview

Protanopia (red-blind)
#203E6E
Deuteranopia (green-blind)
#0E366B
Tritanopia (blue-blind)
#00464D
Achromatopsia (no color)
#3A3A3A

Design tokens & code

CSS
--color: #123a6c;
/* rgb */ color: rgb(18, 58, 108);
/* oklch */ color: oklch(35.0% 0.098 256.0);
Tailwind
colors: {
  custom: {
    50: '#606f96',
    500: '#123a6c',
    950: '#000000',
  },
}
SCSS
$custom: #123a6c;
$custom-light: #606f96;
$custom-dark: #000000;
JSON
{
  "hex": "#123a6c",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 108
  },
  "hsl": {
    "h": 213.333,
    "s": 71.429,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35025,
    "c": 0.09759,
    "h": 256
  },
  "luminance": 0.04237
}

Semantic roles & 50–950 ramp

primary
#123A6C
secondary
#A37336
accent
#9E3AEE
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#05070D
muted
#7A7A7E

Preview Lab

Preview with #123A6C

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

Preview Lab → · Contrast checker → · Palette generator →

#123A6C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva