#123455#123455

#123455 is a dark, moderate cyan. Relative luminance 0.032; OKLCH L 31.8% C 0.071 H 250.5°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#123455
RGB	rgb(18, 52, 85)
HSL	hsl(210, 65%, 20%)
HSV	hsv(210, 79%, 33%)
CMYK	cmyk(78.8%, 38.8%, 0%, 66.7%)
CIE-LAB	lab(20.98, 0.63, -23.53)
CIE-LCH	lch(20.98, 23.54, 271.54°)
OKLab	oklab(31.85% -0.0237 -0.0669)
OKLCH	oklch(31.85% 0.071 250.5)
XYZ	xyz(3.1165, 3.2401, 9.0537)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123455 #553312

analogous

#125554 #123455 #121255

triadic

#123455 #551234 #345512

tetradic

#123455 #541255 #553312 #125512

square

#123455 #541255 #553312 #125512

split-complementary

#123455 #551212 #555412

monochromatic

#050F19 #071522 #123455 #1D5388 #2772BA

Accessibility & contrast

On white

12.74

#123455 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#123455 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123455

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123455	#FFFFFF	#000000	##FFFFFF
##123455	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253656

Deuteranopia (green-blind)

#1B3054

Tritanopia (blue-blind)

#003C40

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #123455;
/* rgb */ color: rgb(18, 52, 85);
/* oklch */ color: oklch(31.8% 0.071 250.5);

Tailwind

colors: {
  custom: {
    50: '#5a6b85',
    500: '#123455',
    950: '#000000',
  },
}

SCSS

$custom: #123455;
$custom-light: #5a6b85;
$custom-dark: #000000;

JSON

{
  "hex": "#123455",
  "rgb": {
    "r": 18,
    "g": 52,
    "b": 85
  },
  "hsl": {
    "h": 209.552,
    "s": 65.049,
    "l": 20.196
  },
  "oklch": {
    "l": 0.31849,
    "c": 0.07099,
    "h": 250.5
  },
  "luminance": 0.0324
}

Semantic roles & 50–950 ramp

primary

#123455

secondary

#8E6135

accent

#9340E8

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123455

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

Preview Lab → · Contrast checker → · Palette generator →