#123C63#123C63

#123C63 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.082 H 250.1°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX#123C63
RGBrgb(18, 60, 99)
HSLhsl(209, 69%, 23%)
HSVhsv(209, 82%, 39%)
CMYKcmyk(81.8%, 39.4%, 0%, 61.2%)
CIE-LABlab(24.52, 0.96, -27.11)
CIE-LCHlch(24.52, 27.13, 272.02°)
OKLaboklab(34.9% -0.0279 -0.0772)
OKLCHoklch(34.9% 0.082 250.1)
XYZxyz(4.1166, 4.2607, 12.4074)
Luminance0.0426 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123C63 #633912
analogous
#126361 #123C63 #121363
triadic
#123C63 #63123C #3C6312
tetradic
#123C63 #611263 #633912 #136312
square
#123C63 #611263 #633912 #136312
split-complementary
#123C63 #631213 #636112
monochromatic
#05101A #091D2F #123C63 #1B5B97 #257BCB

Accessibility & contrast

On white

11.34
#123C63 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.85
#123C63 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C63
11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123C63#FFFFFF#000000##FFFFFF
##123C631.0011.341.8511.34
#FFFFFF11.341.0021.001.00
#0000001.8521.001.0021.00
##FFFFFF11.341.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2A3E65
Deuteranopia (green-blind)
#1E3762
Tritanopia (blue-blind)
#00454A
Achromatopsia (no color)
#3A3A3A

Design tokens & code

CSS
--color: #123c63;
/* rgb */ color: rgb(18, 60, 99);
/* oklch */ color: oklch(34.9% 0.082 250.1);
Tailwind
colors: {
  custom: {
    50: '#5e718f',
    500: '#123c63',
    950: '#000000',
  },
}
SCSS
$custom: #123c63;
$custom-light: #5e718f;
$custom-dark: #000000;
JSON
{
  "hex": "#123c63",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 99
  },
  "hsl": {
    "h": 208.889,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34897,
    "c": 0.08213,
    "h": 250.1
  },
  "luminance": 0.04261
}

Semantic roles & 50–950 ramp

primary
#123C63
secondary
#9B6736
accent
#913CEC
background
#F5F6F8
surface
#EAECF0
border
#C6C7CB
text
#05070C
muted
#797A7D

Preview Lab

Preview with #123C63

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

Preview Lab → · Contrast checker → · Palette generator →

#123C63 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva