#123D51#123D51

#123D51 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.1% C 0.058 H 232.4°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#123D51
RGB	rgb(18, 61, 81)
HSL	hsl(199, 64%, 19%)
HSV	hsv(199, 78%, 32%)
CMYK	cmyk(77.8%, 24.7%, 0%, 68.2%)
CIE-LAB	lab(23.87, -7.05, -16.36)
CIE-LCH	lch(23.87, 17.82, 246.68°)
OKLab	oklab(34.06% -0.0354 -0.046)
OKLCH	oklch(34.06% 0.058 232.4)
XYZ	xyz(3.4028, 4.0598, 8.3873)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123D51 #512612

analogous

#125146 #123D51 #121E51

triadic

#123D51 #51123D #3D5112

tetradic

#123D51 #461251 #512612 #1E5112

square

#123D51 #461251 #512612 #1E5112

split-complementary

#123D51 #51121E #514612

monochromatic

#061319 #07171F #123D51 #1D6383 #2888B5

Accessibility & contrast

On white

11.59

#123D51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#123D51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123D51

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123D51	#FFFFFF	#000000	##FFFFFF
##123D51	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333C52

Deuteranopia (green-blind)

#2A3651

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #123d51;
/* rgb */ color: rgb(18, 61, 81);
/* oklch */ color: oklch(34.1% 0.058 232.4);

Tailwind

colors: {
  custom: {
    50: '#5a7282',
    500: '#123d51',
    950: '#000000',
  },
}

SCSS

$custom: #123d51;
$custom-light: #5a7282;
$custom-dark: #000000;

JSON

{
  "hex": "#123d51",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 81
  },
  "hsl": {
    "h": 199.048,
    "s": 63.636,
    "l": 19.412
  },
  "oklch": {
    "l": 0.34061,
    "c": 0.05801,
    "h": 232.4
  },
  "luminance": 0.0406
}

Semantic roles & 50–950 ramp

primary

#123D51

secondary

#8A5035

accent

#7641E7

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #123D51

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

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