#123A4F#123A4F

#123A4F is a dark, muted cyan. Relative luminance 0.037; OKLCH L 33.1% C 0.058 H 235.4°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#123A4F
RGB	rgb(18, 58, 79)
HSL	hsl(201, 63%, 19%)
HSV	hsv(201, 77%, 31%)
CMYK	cmyk(77.2%, 26.6%, 0%, 69%)
CIE-LAB	lab(22.72, -5.90, -16.82)
CIE-LCH	lch(22.72, 17.82, 250.69°)
OKLab	oklab(33.11% -0.0327 -0.0473)
OKLCH	oklch(33.11% 0.058 235.4)
XYZ	xyz(3.1732, 3.7189, 7.9462)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A4F #4F2712

analogous

#124F46 #123A4F #121C4F

triadic

#123A4F #4F123A #3A4F12

tetradic

#123A4F #46124F #4F2712 #1C4F12

square

#123A4F #46124F #4F2712 #1C4F12

split-complementary

#123A4F #4F121C #4F4612

monochromatic

#061219 #07151D #123A4F #1D5F81 #2983B3

Accessibility & contrast

On white

12.04

#123A4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#123A4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A4F

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A4F	#FFFFFF	#000000	##FFFFFF
##123A4F	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303A50

Deuteranopia (green-blind)

#28344F

Tritanopia (blue-blind)

#003F41

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #123a4f;
/* rgb */ color: rgb(18, 58, 79);
/* oklch */ color: oklch(33.1% 0.058 235.4);

Tailwind

colors: {
  custom: {
    50: '#597080',
    500: '#123a4f',
    950: '#000000',
  },
}

SCSS

$custom: #123a4f;
$custom-light: #597080;
$custom-dark: #000000;

JSON

{
  "hex": "#123a4f",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 79
  },
  "hsl": {
    "h": 200.656,
    "s": 62.887,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33114,
    "c": 0.05751,
    "h": 235.4
  },
  "luminance": 0.03719
}

Semantic roles & 50–950 ramp

primary

#123A4F

secondary

#885135

accent

#7A42E6

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #123A4F

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

Preview Lab → · Contrast checker → · Palette generator →