#123F52#123F52

#123F52 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.7% C 0.058 H 230.0°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#123F52
RGB	rgb(18, 63, 82)
HSL	hsl(198, 64%, 20%)
HSV	hsv(198, 78%, 32%)
CMYK	cmyk(78%, 23.2%, 0%, 67.8%)
CIE-LAB	lab(24.62, -7.94, -15.86)
CIE-LCH	lch(24.62, 17.74, 243.40°)
OKLab	oklab(34.67% -0.0373 -0.0445)
OKLCH	oklch(34.67% 0.058 230)
XYZ	xyz(3.5493, 4.2924, 8.6225)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F52 #522512

analogous

#125245 #123F52 #121F52

triadic

#123F52 #52123F #3F5212

tetradic

#123F52 #451252 #522512 #1F5212

square

#123F52 #451252 #522512 #1F5212

split-complementary

#123F52 #52121F #524512

monochromatic

#061319 #071820 #123F52 #1D6684 #288CB6

Accessibility & contrast

On white

11.30

#123F52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#123F52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F52

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F52	#FFFFFF	#000000	##FFFFFF
##123F52	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353E53

Deuteranopia (green-blind)

#2D3852

Tritanopia (blue-blind)

#004445

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123f52;
/* rgb */ color: rgb(18, 63, 82);
/* oklch */ color: oklch(34.7% 0.058 230.0);

Tailwind

colors: {
  custom: {
    50: '#5a7482',
    500: '#123f52',
    950: '#000000',
  },
}

SCSS

$custom: #123f52;
$custom-light: #5a7482;
$custom-dark: #000000;

JSON

{
  "hex": "#123f52",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 82
  },
  "hsl": {
    "h": 197.813,
    "s": 64,
    "l": 19.608
  },
  "oklch": {
    "l": 0.34673,
    "c": 0.05807,
    "h": 230
  },
  "luminance": 0.04293
}

Semantic roles & 50–950 ramp

primary

#123F52

secondary

#8B4E35

accent

#7241E7

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #123F52

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

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