#123866#123866

#123866 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 34.1% C 0.091 H 255.3°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#123866
RGB	rgb(18, 56, 102)
HSL	hsl(213, 70%, 24%)
HSV	hsv(213, 82%, 40%)
CMYK	cmyk(82.4%, 45.1%, 0%, 60%)
CIE-LAB	lab(23.39, 5.01, -30.84)
CIE-LCH	lch(23.39, 31.25, 279.22°)
OKLab	oklab(34.08% -0.0232 -0.0883)
OKLCH	oklch(34.08% 0.091 255.3)
XYZ	xyz(4.0610, 3.9158, 13.1096)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123866 #664012

analogous

#126266 #123866 #161266

triadic

#123866 #661238 #386612

tetradic

#123866 #661262 #664012 #126616

square

#123866 #661262 #664012 #126616

split-complementary

#123866 #661612 #626612

monochromatic

#050E1A #091B32 #123866 #1B559A #2471CE

Accessibility & contrast

On white

11.78

#123866 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#123866 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123866

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123866	#FFFFFF	#000000	##FFFFFF
##123866	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213C68

Deuteranopia (green-blind)

#123465

Tritanopia (blue-blind)

#00434A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123866;
/* rgb */ color: rgb(18, 56, 102);
/* oklch */ color: oklch(34.1% 0.091 255.3);

Tailwind

colors: {
  custom: {
    50: '#5e6e92',
    500: '#123866',
    950: '#000000',
  },
}

SCSS

$custom: #123866;
$custom-light: #5e6e92;
$custom-dark: #000000;

JSON

{
  "hex": "#123866",
  "rgb": {
    "r": 18,
    "g": 56,
    "b": 102
  },
  "hsl": {
    "h": 212.857,
    "s": 70,
    "l": 23.529
  },
  "oklch": {
    "l": 0.34081,
    "c": 0.09127,
    "h": 255.3
  },
  "luminance": 0.03916
}

Semantic roles & 50–950 ramp

primary

#123866

secondary

#9E6F36

accent

#9C3BED

background

#F5F6F9

surface

#EAEBF1

border

#C6C6CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #123866

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

Preview Lab → · Contrast checker → · Palette generator →