#123456#123456

#123456 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 31.9% C 0.072 H 251.2°. Best body text is #FFFFFF at 12.72:1 contrast (WCAG AA passes).

Color values

HEX	#123456
RGB	rgb(18, 52, 86)
HSL	hsl(210, 65%, 20%)
HSV	hsv(210, 79%, 34%)
CMYK	cmyk(79.1%, 39.5%, 0%, 66.3%)
CIE-LAB	lab(21.04, 1.05, -24.10)
CIE-LCH	lch(21.04, 24.12, 272.50°)
OKLab	oklab(31.92% -0.0234 -0.0686)
OKLCH	oklch(31.92% 0.072 251.2)
XYZ	xyz(3.1565, 3.2561, 9.2644)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123456 #563412

analogous

#125656 #123456 #121256

triadic

#123456 #561234 #345612

tetradic

#123456 #561256 #563412 #125612

square

#123456 #561256 #563412 #125612

split-complementary

#123456 #561212 #565612

monochromatic

#050F19 #071523 #123456 #1D5389 #2771BB

Accessibility & contrast

On white

12.72

#123456 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#123456 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123456

12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123456	#FFFFFF	#000000	##FFFFFF
##123456	1.00	12.72	1.65	12.72
#FFFFFF	12.72	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243657

Deuteranopia (green-blind)

#1A3055

Tritanopia (blue-blind)

#003C40

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #123456;
/* rgb */ color: rgb(18, 52, 86);
/* oklch */ color: oklch(31.9% 0.072 251.2);

Tailwind

colors: {
  custom: {
    50: '#5a6b86',
    500: '#123456',
    950: '#000000',
  },
}

SCSS

$custom: #123456;
$custom-light: #5a6b86;
$custom-dark: #000000;

JSON

{
  "hex": "#123456",
  "rgb": {
    "r": 18,
    "g": 52,
    "b": 86
  },
  "hsl": {
    "h": 210,
    "s": 65.385,
    "l": 20.392
  },
  "oklch": {
    "l": 0.31917,
    "c": 0.07246,
    "h": 251.2
  },
  "luminance": 0.03256
}

Semantic roles & 50–950 ramp

primary

#123456

secondary

#8F6235

accent

#943FE8

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123456

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

Preview Lab → · Contrast checker → · Palette generator →