#123C6A#123C6A

#123C6A is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.092 H 253.6°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#123C6A
RGB	rgb(18, 60, 106)
HSL	hsl(211, 71%, 24%)
HSV	hsv(211, 83%, 42%)
CMYK	cmyk(83%, 43.4%, 0%, 58.4%)
CIE-LAB	lab(24.95, 3.90, -30.93)
CIE-LCH	lch(24.95, 31.17, 277.19°)
OKLab	oklab(35.38% -0.026 -0.0884)
OKLCH	oklch(35.38% 0.092 253.6)
XYZ	xyz(4.4659, 4.4004, 14.2469)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C6A #6A4012

analogous

#12686A #123C6A #14126A

triadic

#123C6A #6A123C #3C6A12

tetradic

#123C6A #6A1268 #6A4012 #126A14

square

#123C6A #6A1268 #6A4012 #126A14

split-complementary

#123C6A #6A1412 #686A12

monochromatic

#040F1A #091E36 #123C6A #1B5A9E #2477D3

Accessibility & contrast

On white

11.17

#123C6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#123C6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C6A

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C6A	#FFFFFF	#000000	##FFFFFF
##123C6A	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26406C

Deuteranopia (green-blind)

#163869

Tritanopia (blue-blind)

#00474D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123c6a;
/* rgb */ color: rgb(18, 60, 106);
/* oklch */ color: oklch(35.4% 0.092 253.6);

Tailwind

colors: {
  custom: {
    50: '#5f7195',
    500: '#123c6a',
    950: '#000000',
  },
}

SCSS

$custom: #123c6a;
$custom-light: #5f7195;
$custom-dark: #000000;

JSON

{
  "hex": "#123c6a",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 106
  },
  "hsl": {
    "h": 211.364,
    "s": 70.968,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35381,
    "c": 0.09219,
    "h": 253.6
  },
  "luminance": 0.04401
}

Semantic roles & 50–950 ramp

primary

#123C6A

secondary

#A26E36

accent

#983AEE

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123C6A

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

Preview Lab → · Contrast checker → · Palette generator →