#123657#123657

#123657 is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.5% C 0.072 H 249.4°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX#123657
RGBrgb(18, 54, 87)
HSLhsl(209, 66%, 21%)
HSVhsv(209, 79%, 34%)
CMYKcmyk(79.3%, 37.9%, 0%, 65.9%)
CIE-LABlab(21.78, 0.08, -23.59)
CIE-LCHlch(21.78, 23.59, 270.19°)
OKLaboklab(32.52% -0.0253 -0.0671)
OKLCHoklch(32.52% 0.072 249.4)
XYZxyz(3.2883, 3.4547, 9.5085)
Luminance0.0345 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123657 #573312
analogous
#125755 #123657 #121357
triadic
#123657 #571236 #365712
tetradic
#123657 #551257 #573312 #135712
square
#123657 #551257 #573312 #135712
split-complementary
#123657 #571213 #575512
monochromatic
#051019 #081724 #123657 #1C558A #2775BC

Accessibility & contrast

On white

12.42
#123657 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.69
#123657 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123657
12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123657#FFFFFF#000000##FFFFFF
##1236571.0012.421.6912.42
#FFFFFF12.421.0021.001.00
#0000001.6921.001.0021.00
##FFFFFF12.421.0021.001.00

Color blindness preview

Protanopia (red-blind)
#273858
Deuteranopia (green-blind)
#1D3156
Tritanopia (blue-blind)
#003E42
Achromatopsia (no color)
#343434

Design tokens & code

CSS
--color: #123657;
/* rgb */ color: rgb(18, 54, 87);
/* oklch */ color: oklch(32.5% 0.072 249.4);
Tailwind
colors: {
  custom: {
    50: '#5b6c86',
    500: '#123657',
    950: '#000000',
  },
}
SCSS
$custom: #123657;
$custom-light: #5b6c86;
$custom-dark: #000000;
JSON
{
  "hex": "#123657",
  "rgb": {
    "r": 18,
    "g": 54,
    "b": 87
  },
  "hsl": {
    "h": 208.696,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.32515,
    "c": 0.07166,
    "h": 249.4
  },
  "luminance": 0.03455
}

Semantic roles & 50–950 ramp

primary
#123657
secondary
#906035
accent
#903FE9
background
#F5F6F8
surface
#E9EBEF
border
#C5C6CA
text
#04070B
muted
#797A7C

Preview Lab

Preview with #123657

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

Preview Lab → · Contrast checker → · Palette generator →

#123657 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva