#123E53#123E53

#123E53 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.4% C 0.060 H 233.2°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#123E53
RGB	rgb(18, 62, 83)
HSL	hsl(199, 64%, 20%)
HSV	hsv(199, 78%, 33%)
CMYK	cmyk(78.3%, 25.3%, 0%, 67.5%)
CIE-LAB	lab(24.32, -6.91, -16.98)
CIE-LCH	lch(24.32, 18.33, 247.86°)
OKLab	oklab(34.45% -0.0357 -0.0477)
OKLCH	oklch(34.45% 0.06 233.2)
XYZ	xyz(3.5328, 4.1980, 8.8060)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E53 #532712

analogous

#125348 #123E53 #121D53

triadic

#123E53 #53123E #3E5312

tetradic

#123E53 #481253 #532712 #1D5312

square

#123E53 #481253 #532712 #1D5312

split-complementary

#123E53 #53121D #534812

monochromatic

#051319 #071821 #123E53 #1D6485 #2889B8

Accessibility & contrast

On white

11.42

#123E53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#123E53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E53

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E53	#FFFFFF	#000000	##FFFFFF
##123E53	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343D54

Deuteranopia (green-blind)

#2B3753

Tritanopia (blue-blind)

#004445

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123e53;
/* rgb */ color: rgb(18, 62, 83);
/* oklch */ color: oklch(34.4% 0.060 233.2);

Tailwind

colors: {
  custom: {
    50: '#5a7383',
    500: '#123e53',
    950: '#000000',
  },
}

SCSS

$custom: #123e53;
$custom-light: #5a7383;
$custom-dark: #000000;

JSON

{
  "hex": "#123e53",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 83
  },
  "hsl": {
    "h": 199.385,
    "s": 64.356,
    "l": 19.804
  },
  "oklch": {
    "l": 0.3445,
    "c": 0.05963,
    "h": 233.2
  },
  "luminance": 0.04198
}

Semantic roles & 50–950 ramp

primary

#123E53

secondary

#8C5135

accent

#7640E7

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080A

muted

#797B7C

Preview Lab

Preview with #123E53

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

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