#123B6E#123B6E

#123B6E is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.099 H 255.9°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX#123B6E
RGBrgb(18, 59, 110)
HSLhsl(213, 72%, 25%)
HSVhsv(213, 84%, 43%)
CMYKcmyk(83.6%, 46.4%, 0%, 56.9%)
CIE-LABlab(24.90, 6.29, -33.58)
CIE-LCHlch(24.90, 34.17, 280.61°)
OKLaboklab(35.42% -0.0241 -0.0963)
OKLCHoklch(35.42% 0.099 255.9)
XYZxyz(4.6268, 4.3818, 15.3507)
Luminance0.0438 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123B6E #6E4512
analogous
#12696E #123B6E #17126E
triadic
#123B6E #6E123B #3B6E12
tetradic
#123B6E #6E1269 #6E4512 #126E17
square
#123B6E #6E1269 #6E4512 #126E17
split-complementary
#123B6E #6E1712 #696E12
monochromatic
#040E1A #091F39 #123B6E #1B57A3 #2373D7

Accessibility & contrast

On white

11.19
#123B6E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.88
#123B6E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B6E
11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123B6E#FFFFFF#000000##FFFFFF
##123B6E1.0011.191.8811.19
#FFFFFF11.191.0021.001.00
#0000001.8821.001.0021.00
##FFFFFF11.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#214070
Deuteranopia (green-blind)
#0E376D
Tritanopia (blue-blind)
#00474F
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #123b6e;
/* rgb */ color: rgb(18, 59, 110);
/* oklch */ color: oklch(35.4% 0.099 255.9);
Tailwind
colors: {
  custom: {
    50: '#607098',
    500: '#123b6e',
    950: '#000000',
  },
}
SCSS
$custom: #123b6e;
$custom-light: #607098;
$custom-dark: #000000;
JSON
{
  "hex": "#123b6e",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 110
  },
  "hsl": {
    "h": 213.261,
    "s": 71.875,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35422,
    "c": 0.09925,
    "h": 255.9
  },
  "luminance": 0.04382
}

Semantic roles & 50–950 ramp

primary
#123B6E
secondary
#A57437
accent
#9E39EF
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#05070D
muted
#7A7A7E

Preview Lab

Preview with #123B6E

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

Preview Lab → · Contrast checker → · Palette generator →

#123B6E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva