#123C5E#123C5E

#123C5E is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.075 H 246.9°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#123C5E
RGB	rgb(18, 60, 94)
HSL	hsl(207, 68%, 22%)
HSV	hsv(207, 81%, 37%)
CMYK	cmyk(80.9%, 36.2%, 0%, 63.1%)
CIE-LAB	lab(24.22, -1.13, -24.33)
CIE-LCH	lch(24.22, 24.36, 267.35°)
OKLab	oklab(34.57% -0.0295 -0.0691)
OKLCH	oklch(34.57% 0.075 246.9)
XYZ	xyz(3.8849, 4.1680, 11.1873)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C5E #5E3412

analogous

#125E5A #123C5E #12165E

triadic

#123C5E #5E123C #3C5E12

tetradic

#123C5E #5A125E #5E3412 #165E12

square

#123C5E #5A125E #5E3412 #165E12

split-complementary

#123C5E #5E1216 #5E5A12

monochromatic

#05101A #081B2B #123C5E #1C5D91 #267EC5

Accessibility & contrast

On white

11.45

#123C5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#123C5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C5E

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C5E	#FFFFFF	#000000	##FFFFFF
##123C5E	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3D5F

Deuteranopia (green-blind)

#21365D

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123c5e;
/* rgb */ color: rgb(18, 60, 94);
/* oklch */ color: oklch(34.6% 0.075 246.9);

Tailwind

colors: {
  custom: {
    50: '#5c718c',
    500: '#123c5e',
    950: '#000000',
  },
}

SCSS

$custom: #123c5e;
$custom-light: #5c718c;
$custom-dark: #000000;

JSON

{
  "hex": "#123c5e",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 94
  },
  "hsl": {
    "h": 206.842,
    "s": 67.857,
    "l": 21.961
  },
  "oklch": {
    "l": 0.34567,
    "c": 0.07513,
    "h": 246.9
  },
  "luminance": 0.04168
}

Semantic roles & 50–950 ramp

primary

#123C5E

secondary

#966135

accent

#8B3DEB

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #123C5E

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

Preview Lab → · Contrast checker → · Palette generator →