#123D4D#123D4D

#123D4D is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.054 H 226.6°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#123D4D
RGB	rgb(18, 61, 77)
HSL	hsl(196, 62%, 19%)
HSV	hsv(196, 77%, 30%)
CMYK	cmyk(76.6%, 20.8%, 0%, 69.8%)
CIE-LAB	lab(23.68, -8.61, -14.01)
CIE-LCH	lch(23.68, 16.45, 238.43°)
OKLab	oklab(33.85% -0.0371 -0.0392)
OKLCH	oklch(33.85% 0.054 226.6)
XYZ	xyz(3.2572, 4.0015, 7.6205)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123D4D #4D2212

analogous

#124D3F #123D4D #121F4D

triadic

#123D4D #4D123D #3D4D12

tetradic

#123D4D #3F124D #4D2212 #1F4D12

square

#123D4D #3F124D #4D2212 #1F4D12

split-complementary

#123D4D #4D121F #4D3F12

monochromatic

#061419 #06161B #123D4D #1E647F #298CB0

Accessibility & contrast

On white

11.66

#123D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#123D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123D4D

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123D4D	#FFFFFF	#000000	##FFFFFF
##123D4D	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C4E

Deuteranopia (green-blind)

#2C364D

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123d4d;
/* rgb */ color: rgb(18, 61, 77);
/* oklch */ color: oklch(33.8% 0.054 226.6);

Tailwind

colors: {
  custom: {
    50: '#59727e',
    500: '#123d4d',
    950: '#000000',
  },
}

SCSS

$custom: #123d4d;
$custom-light: #59727e;
$custom-dark: #000000;

JSON

{
  "hex": "#123d4d",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 77
  },
  "hsl": {
    "h": 196.271,
    "s": 62.105,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33845,
    "c": 0.05399,
    "h": 226.6
  },
  "luminance": 0.04002
}

Semantic roles & 50–950 ramp

primary

#123D4D

secondary

#864B35

accent

#6F43E5

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #123D4D

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

Preview Lab → · Contrast checker → · Palette generator →