#123B5D#123B5D

#123B5D is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.075 H 247.4°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX#123B5D
RGBrgb(18, 59, 93)
HSLhsl(207, 68%, 22%)
HSVhsv(207, 81%, 36%)
CMYKcmyk(80.6%, 36.6%, 0%, 63.5%)
CIE-LABlab(23.82, -0.86, -24.30)
CIE-LCHlch(23.82, 24.32, 267.97°)
OKLaboklab(34.24% -0.0287 -0.069)
OKLCHoklch(34.24% 0.075 247.4)
XYZxyz(3.7884, 4.0464, 10.9352)
Luminance0.0405 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123B5D #5D3412
analogous
#125D5A #123B5D #12165D
triadic
#123B5D #5D123B #3B5D12
tetradic
#123B5D #5A125D #5D3412 #165D12
square
#123B5D #5A125D #5D3412 #165D12
split-complementary
#123B5D #5D1216 #5D5A12
monochromatic
#05101A #081A2A #123B5D #1C5C90 #267CC4

Accessibility & contrast

On white

11.61
#123B5D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.81
#123B5D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B5D
11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123B5D#FFFFFF#000000##FFFFFF
##123B5D1.0011.611.8111.61
#FFFFFF11.611.0021.001.00
#0000001.8121.001.0021.00
##FFFFFF11.611.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2B3D5E
Deuteranopia (green-blind)
#21365C
Tritanopia (blue-blind)
#004347
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #123b5d;
/* rgb */ color: rgb(18, 59, 93);
/* oklch */ color: oklch(34.2% 0.075 247.4);
Tailwind
colors: {
  custom: {
    50: '#5c708b',
    500: '#123b5d',
    950: '#000000',
  },
}
SCSS
$custom: #123b5d;
$custom-light: #5c708b;
$custom-dark: #000000;
JSON
{
  "hex": "#123b5d",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 93
  },
  "hsl": {
    "h": 207.2,
    "s": 67.568,
    "l": 21.765
  },
  "oklch": {
    "l": 0.34238,
    "c": 0.07479,
    "h": 247.4
  },
  "luminance": 0.04047
}

Semantic roles & 50–950 ramp

primary
#123B5D
secondary
#956135
accent
#8C3DEA
background
#F5F6F8
surface
#E9ECF0
border
#C5C7CB
text
#05070C
muted
#797A7D

Preview Lab

Preview with #123B5D

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

Preview Lab → · Contrast checker → · Palette generator →

#123B5D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva