#123B65#123B65

#123B65 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.8% C 0.086 H 252.2°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX#123B65
RGBrgb(18, 59, 101)
HSLhsl(210, 70%, 23%)
HSVhsv(210, 82%, 40%)
CMYKcmyk(82.2%, 41.6%, 0%, 60.4%)
CIE-LABlab(24.31, 2.49, -28.73)
CIE-LCHlch(24.31, 28.84, 274.95°)
OKLaboklab(34.77% -0.0264 -0.082)
OKLCHoklch(34.77% 0.086 252.2)
XYZxyz(4.1615, 4.1956, 12.8999)
Luminance0.0420 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123B65 #653C12
analogous
#126465 #123B65 #121265
triadic
#123B65 #65123B #3B6512
tetradic
#123B65 #651264 #653C12 #126512
square
#123B65 #651264 #653C12 #126512
split-complementary
#123B65 #651212 #646512
monochromatic
#050F1A #091D31 #123B65 #1B5999 #2578CD

Accessibility & contrast

On white

11.42
#123B65 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.84
#123B65 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B65
11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123B65#FFFFFF#000000##FFFFFF
##123B651.0011.421.8411.42
#FFFFFF11.421.0021.001.00
#0000001.8421.001.0021.00
##FFFFFF11.421.0021.001.00

Color blindness preview

Protanopia (red-blind)
#273E67
Deuteranopia (green-blind)
#1A3664
Tritanopia (blue-blind)
#00454B
Achromatopsia (no color)
#3A3A3A

Design tokens & code

CSS
--color: #123b65;
/* rgb */ color: rgb(18, 59, 101);
/* oklch */ color: oklch(34.8% 0.086 252.2);
Tailwind
colors: {
  custom: {
    50: '#5e7091',
    500: '#123b65',
    950: '#000000',
  },
}
SCSS
$custom: #123b65;
$custom-light: #5e7091;
$custom-dark: #000000;
JSON
{
  "hex": "#123b65",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 101
  },
  "hsl": {
    "h": 210.361,
    "s": 69.748,
    "l": 23.333
  },
  "oklch": {
    "l": 0.34774,
    "c": 0.08615,
    "h": 252.2
  },
  "luminance": 0.04196
}

Semantic roles & 50–950 ramp

primary
#123B65
secondary
#9D6A36
accent
#953BED
background
#F5F6F8
surface
#EAECF0
border
#C6C7CB
text
#05070D
muted
#797A7D

Preview Lab

Preview with #123B65

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

Preview Lab → · Contrast checker → · Palette generator →

#123B65 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva