#123F4D#123F4D

#123F4D is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.4% C 0.054 H 222.4°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#123F4D
RGB	rgb(18, 63, 77)
HSL	hsl(194, 62%, 19%)
HSV	hsv(194, 77%, 30%)
CMYK	cmyk(76.6%, 18.2%, 0%, 69.8%)
CIE-LAB	lab(24.38, -9.87, -12.93)
CIE-LCH	lch(24.38, 16.26, 232.64°)
OKLab	oklab(34.41% -0.0395 -0.0361)
OKLCH	oklch(34.41% 0.054 222.4)
XYZ	xyz(3.3660, 4.2191, 7.6567)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F4D #4D2012

analogous

#124D3D #123F4D #12214D

triadic

#123F4D #4D123F #3F4D12

tetradic

#123F4D #3D124D #4D2012 #214D12

square

#123F4D #3D124D #4D2012 #214D12

split-complementary

#123F4D #4D1221 #4D3D12

monochromatic

#061419 #06161B #123F4D #1E687F #2990B0

Accessibility & contrast

On white

11.39

#123F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#123F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F4D

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F4D	#FFFFFF	#000000	##FFFFFF
##123F4D	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373D4E

Deuteranopia (green-blind)

#2F374D

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123f4d;
/* rgb */ color: rgb(18, 63, 77);
/* oklch */ color: oklch(34.4% 0.054 222.4);

Tailwind

colors: {
  custom: {
    50: '#59747e',
    500: '#123f4d',
    950: '#000000',
  },
}

SCSS

$custom: #123f4d;
$custom-light: #59747e;
$custom-dark: #000000;

JSON

{
  "hex": "#123f4d",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 77
  },
  "hsl": {
    "h": 194.237,
    "s": 62.105,
    "l": 18.627
  },
  "oklch": {
    "l": 0.3441,
    "c": 0.05351,
    "h": 222.4
  },
  "luminance": 0.04219
}

Semantic roles & 50–950 ramp

primary

#123F4D

secondary

#864835

accent

#6943E5

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #123F4D

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

Preview Lab → · Contrast checker → · Palette generator →