#18536E#18536E

#18536E is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 41.8% C 0.074 H 232.6°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#18536E
RGB	rgb(24, 83, 110)
HSL	hsl(199, 64%, 26%)
HSV	hsv(199, 78%, 43%)
CMYK	cmyk(78.2%, 24.5%, 0%, 56.9%)
CIE-LAB	lab(32.93, -8.74, -20.88)
CIE-LCH	lch(32.93, 22.64, 247.28°)
OKLab	oklab(41.8% -0.0449 -0.0587)
OKLCH	oklch(41.8% 0.074 232.6)
XYZ	xyz(6.2833, 7.5058, 15.8664)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18536E #6E3318

analogous

#186E5E #18536E #18286E

triadic

#18536E #6E1853 #536E18

tetradic

#18536E #5E186E #6E3318 #286E18

square

#18536E #5E186E #6E3318 #286E18

split-complementary

#18536E #6E1828 #6E5E18

monochromatic

#051319 #0D2D3C #18536E #2379A0 #2F9ED2

Accessibility & contrast

On white

8.40

#18536E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#18536E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18536E

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18536E	#FFFFFF	#000000	##FFFFFF
##18536E	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46526F

Deuteranopia (green-blind)

#3A4A6E

Tritanopia (blue-blind)

#005A5C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18536e;
/* rgb */ color: rgb(24, 83, 110);
/* oklch */ color: oklch(41.8% 0.074 232.6);

Tailwind

colors: {
  custom: {
    50: '#638397',
    500: '#18536e',
    950: '#000000',
  },
}

SCSS

$custom: #18536e;
$custom-light: #638397;
$custom-dark: #000000;

JSON

{
  "hex": "#18536e",
  "rgb": {
    "r": 24,
    "g": 83,
    "b": 110
  },
  "hsl": {
    "h": 198.837,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.41797,
    "c": 0.07396,
    "h": 232.6
  },
  "luminance": 0.07506
}

Semantic roles & 50–950 ramp

primary

#18536E

secondary

#A45E3E

accent

#7541E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #18536E

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

Preview Lab → · Contrast checker → · Palette generator →