#123F53#123F53

#123F53 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.7% C 0.059 H 231.4°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#123F53
RGB	rgb(18, 63, 83)
HSL	hsl(198, 64%, 20%)
HSV	hsv(198, 78%, 33%)
CMYK	cmyk(78.3%, 24.1%, 0%, 67.5%)
CIE-LAB	lab(24.66, -7.55, -16.44)
CIE-LCH	lch(24.66, 18.09, 245.33°)
OKLab	oklab(34.73% -0.0369 -0.0462)
OKLCH	oklch(34.73% 0.059 231.4)
XYZ	xyz(3.5877, 4.3077, 8.8243)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F53 #532612

analogous

#125347 #123F53 #121E53

triadic

#123F53 #53123F #3F5312

tetradic

#123F53 #471253 #532612 #1E5312

square

#123F53 #471253 #532612 #1E5312

split-complementary

#123F53 #53121E #534712

monochromatic

#051319 #071921 #123F53 #1D6585 #288BB8

Accessibility & contrast

On white

11.28

#123F53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#123F53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F53

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F53	#FFFFFF	#000000	##FFFFFF
##123F53	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353E54

Deuteranopia (green-blind)

#2C3853

Tritanopia (blue-blind)

#004446

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123f53;
/* rgb */ color: rgb(18, 63, 83);
/* oklch */ color: oklch(34.7% 0.059 231.4);

Tailwind

colors: {
  custom: {
    50: '#5a7483',
    500: '#123f53',
    950: '#000000',
  },
}

SCSS

$custom: #123f53;
$custom-light: #5a7483;
$custom-dark: #000000;

JSON

{
  "hex": "#123f53",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 83
  },
  "hsl": {
    "h": 198.462,
    "s": 64.356,
    "l": 19.804
  },
  "oklch": {
    "l": 0.34728,
    "c": 0.0591,
    "h": 231.4
  },
  "luminance": 0.04308
}

Semantic roles & 50–950 ramp

primary

#123F53

secondary

#8C5035

accent

#7440E7

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080A

muted

#797B7C

Preview Lab

Preview with #123F53

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

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