#123D4A#123D4A

#123D4A is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.7% C 0.051 H 221.6°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#123D4A
RGB	rgb(18, 61, 74)
HSL	hsl(194, 61%, 18%)
HSV	hsv(194, 76%, 29%)
CMYK	cmyk(75.7%, 17.6%, 0%, 71%)
CIE-LAB	lab(23.54, -9.76, -12.24)
CIE-LCH	lch(23.54, 15.65, 231.43°)
OKLab	oklab(33.69% -0.0384 -0.0341)
OKLCH	oklch(33.69% 0.051 221.6)
XYZ	xyz(3.1537, 3.9601, 7.0754)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123D4A #4A1F12

analogous

#124A3B #123D4A #12214A

triadic

#123D4A #4A123D #3D4A12

tetradic

#123D4A #3B124A #4A1F12 #214A12

square

#123D4A #3B124A #4A1F12 #214A12

split-complementary

#123D4A #4A1221 #4A3B12

monochromatic

#061419 #061419 #123D4A #1E667B #2A8EAC

Accessibility & contrast

On white

11.72

#123D4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#123D4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123D4A

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123D4A	#FFFFFF	#000000	##FFFFFF
##123D4A	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353B4B

Deuteranopia (green-blind)

#2D364A

Tritanopia (blue-blind)

#004141

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123d4a;
/* rgb */ color: rgb(18, 61, 74);
/* oklch */ color: oklch(33.7% 0.051 221.6);

Tailwind

colors: {
  custom: {
    50: '#58727c',
    500: '#123d4a',
    950: '#000000',
  },
}

SCSS

$custom: #123d4a;
$custom-light: #58727c;
$custom-dark: #000000;

JSON

{
  "hex": "#123d4a",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 74
  },
  "hsl": {
    "h": 193.929,
    "s": 60.87,
    "l": 18.039
  },
  "oklch": {
    "l": 0.3369,
    "c": 0.05142,
    "h": 221.6
  },
  "luminance": 0.0396
}

Semantic roles & 50–950 ramp

primary

#123D4A

secondary

#834735

accent

#6944E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #123D4A

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

Preview Lab → · Contrast checker → · Palette generator →