#123A4B#123A4B

#123A4B is a dark, muted cyan. Relative luminance 0.037; OKLCH L 32.9% C 0.053 H 229.7°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#123A4B
RGB	rgb(18, 58, 75)
HSL	hsl(198, 61%, 18%)
HSV	hsv(198, 76%, 29%)
CMYK	cmyk(76%, 22.7%, 0%, 70.6%)
CIE-LAB	lab(22.52, -7.47, -14.47)
CIE-LCH	lch(22.52, 16.28, 242.69°)
OKLab	oklab(32.89% -0.0344 -0.0405)
OKLCH	oklch(32.89% 0.053 229.7)
XYZ	xyz(3.0320, 3.6624, 7.2024)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A4B #4B2312

analogous

#124B3F #123A4B #121D4B

triadic

#123A4B #4B123A #3A4B12

tetradic

#123A4B #3F124B #4B2312 #1D4B12

square

#123A4B #3F124B #4B2312 #1D4B12

split-complementary

#123A4B #4B121D #4B3F12

monochromatic

#061319 #06141A #123A4B #1E607C #2A86AE

Accessibility & contrast

On white

12.12

#123A4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#123A4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A4B

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A4B	#FFFFFF	#000000	##FFFFFF
##123A4B	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31394C

Deuteranopia (green-blind)

#29334B

Tritanopia (blue-blind)

#003F40

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #123a4b;
/* rgb */ color: rgb(18, 58, 75);
/* oklch */ color: oklch(32.9% 0.053 229.7);

Tailwind

colors: {
  custom: {
    50: '#58707d',
    500: '#123a4b',
    950: '#000000',
  },
}

SCSS

$custom: #123a4b;
$custom-light: #58707d;
$custom-dark: #000000;

JSON

{
  "hex": "#123a4b",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 75
  },
  "hsl": {
    "h": 197.895,
    "s": 61.29,
    "l": 18.235
  },
  "oklch": {
    "l": 0.32891,
    "c": 0.05314,
    "h": 229.7
  },
  "luminance": 0.03663
}

Semantic roles & 50–950 ramp

primary

#123A4B

secondary

#844C35

accent

#7343E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #123A4B

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

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