#123B73#123B73

#123B73 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.8% C 0.107 H 257.5°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX#123B73
RGBrgb(18, 59, 115)
HSLhsl(215, 73%, 26%)
HSVhsv(215, 84%, 45%)
CMYKcmyk(84.3%, 48.7%, 0%, 54.9%)
CIE-LABlab(25.24, 8.41, -36.22)
CIE-LCHlch(25.24, 37.18, 283.08°)
OKLaboklab(35.8% -0.0231 -0.104)
OKLCHoklch(35.8% 0.107 257.5)
XYZxyz(4.9068, 4.4937, 16.8251)
Luminance0.0449 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123B73 #734A12
analogous
#126B73 #123B73 #191273
triadic
#123B73 #73123B #3B7312
tetradic
#123B73 #73126B #734A12 #127319
square
#123B73 #73126B #734A12 #127319
split-complementary
#123B73 #731912 #6B7312
monochromatic
#040E1A #0A203E #123B73 #1A56A8 #2371DD

Accessibility & contrast

On white

11.06
#123B73 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.90
#123B73 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B73
11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123B73#FFFFFF#000000##FFFFFF
##123B731.0011.061.9011.06
#FFFFFF11.061.0021.001.00
#0000001.9021.001.0021.00
##FFFFFF11.061.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1C4175
Deuteranopia (green-blind)
#033872
Tritanopia (blue-blind)
#004851
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #123b73;
/* rgb */ color: rgb(18, 59, 115);
/* oklch */ color: oklch(35.8% 0.107 257.5);
Tailwind
colors: {
  custom: {
    50: '#62709c',
    500: '#123b73',
    950: '#000000',
  },
}
SCSS
$custom: #123b73;
$custom-light: #62709c;
$custom-dark: #000000;
JSON
{
  "hex": "#123b73",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 214.639,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.358,
    "c": 0.10657,
    "h": 257.5
  },
  "luminance": 0.04494
}

Semantic roles & 50–950 ramp

primary
#123B73
secondary
#AA7937
accent
#A238F0
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06070E
muted
#7A7A7E

Preview Lab

Preview with #123B73

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

Preview Lab → · Contrast checker → · Palette generator →

#123B73 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva