#123F54#123F54

#123F54 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.060 H 232.7°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#123F54
RGB	rgb(18, 63, 84)
HSL	hsl(199, 65%, 20%)
HSV	hsv(199, 79%, 33%)
CMYK	cmyk(78.6%, 25%, 0%, 67.1%)
CIE-LAB	lab(24.71, -7.16, -17.02)
CIE-LCH	lch(24.71, 18.46, 247.19°)
OKLab	oklab(34.78% -0.0365 -0.0478)
OKLCH	oklch(34.78% 0.06 232.7)
XYZ	xyz(3.6266, 4.3233, 9.0291)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F54 #542712

analogous

#125448 #123F54 #121E54

triadic

#123F54 #54123F #3F5412

tetradic

#123F54 #481254 #542712 #1E5412

square

#123F54 #481254 #542712 #1E5412

split-complementary

#123F54 #54121E #544812

monochromatic

#051319 #071922 #123F54 #1D6586 #288BB9

Accessibility & contrast

On white

11.26

#123F54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#123F54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F54

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F54	#FFFFFF	#000000	##FFFFFF
##123F54	1.00	11.26	1.86	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353E55

Deuteranopia (green-blind)

#2C3854

Tritanopia (blue-blind)

#004546

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123f54;
/* rgb */ color: rgb(18, 63, 84);
/* oklch */ color: oklch(34.8% 0.060 232.7);

Tailwind

colors: {
  custom: {
    50: '#5a7484',
    500: '#123f54',
    950: '#000000',
  },
}

SCSS

$custom: #123f54;
$custom-light: #5a7484;
$custom-dark: #000000;

JSON

{
  "hex": "#123f54",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 84
  },
  "hsl": {
    "h": 199.091,
    "s": 64.706,
    "l": 20
  },
  "oklch": {
    "l": 0.34783,
    "c": 0.06016,
    "h": 232.7
  },
  "luminance": 0.04324
}

Semantic roles & 50–950 ramp

primary

#123F54

secondary

#8D5135

accent

#7540E8

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080A

muted

#797B7C

Preview Lab

Preview with #123F54

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

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