#123E63#123E63

#123E63 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.080 H 248.0°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX#123E63
RGBrgb(18, 62, 99)
HSLhsl(207, 69%, 23%)
HSVhsv(207, 82%, 39%)
CMYKcmyk(81.8%, 37.4%, 0%, 61.2%)
CIE-LABlab(25.18, -0.41, -26.05)
CIE-LCHlch(25.18, 26.06, 269.10°)
OKLaboklab(35.42% -0.03 -0.0741)
OKLCHoklch(35.42% 0.08 248)
XYZxyz(4.2233, 4.4742, 12.4430)
Luminance0.0447 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123E63 #633712
analogous
#12635F #123E63 #121663
triadic
#123E63 #63123E #3E6312
tetradic
#123E63 #5F1263 #633712 #166312
square
#123E63 #5F1263 #633712 #166312
split-complementary
#123E63 #631216 #635F12
monochromatic
#05101A #091E2F #123E63 #1B5E97 #257FCB

Accessibility & contrast

On white

11.08
#123E63 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.90
#123E63 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E63
11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123E63#FFFFFF#000000##FFFFFF
##123E631.0011.081.9011.08
#FFFFFF11.081.0021.001.00
#0000001.9021.001.0021.00
##FFFFFF11.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2D4065
Deuteranopia (green-blind)
#213862
Tritanopia (blue-blind)
#00474B
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #123e63;
/* rgb */ color: rgb(18, 62, 99);
/* oklch */ color: oklch(35.4% 0.080 248.0);
Tailwind
colors: {
  custom: {
    50: '#5e738f',
    500: '#123e63',
    950: '#000000',
  },
}
SCSS
$custom: #123e63;
$custom-light: #5e738f;
$custom-dark: #000000;
JSON
{
  "hex": "#123e63",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 99
  },
  "hsl": {
    "h": 207.407,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.35419,
    "c": 0.07994,
    "h": 248
  },
  "luminance": 0.04475
}

Semantic roles & 50–950 ramp

primary
#123E63
secondary
#9B6436
accent
#8C3CEC
background
#F5F6F8
surface
#EAECF0
border
#C6C7CB
text
#05080C
muted
#797B7D

Preview Lab

Preview with #123E63

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

Preview Lab → · Contrast checker → · Palette generator →

#123E63 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva