#18536B#18536B

#18536B is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.6% C 0.071 H 229.5°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#18536B
RGB	rgb(24, 83, 107)
HSL	hsl(197, 63%, 26%)
HSV	hsv(197, 78%, 42%)
CMYK	cmyk(77.6%, 22.4%, 0%, 58%)
CIE-LAB	lab(32.79, -9.87, -19.22)
CIE-LCH	lch(32.79, 21.61, 242.81°)
OKLab	oklab(41.64% -0.0461 -0.054)
OKLCH	oklch(41.64% 0.071 229.5)
XYZ	xyz(6.1227, 7.4415, 15.0207)
Luminance	0.0744 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18536B #6B3018

analogous

#186B59 #18536B #182A6B

triadic

#18536B #6B1853 #536B18

tetradic

#18536B #59186B #6B3018 #2A6B18

square

#18536B #59186B #6B3018 #2A6B18

split-complementary

#18536B #6B182A #6B5918

monochromatic

#061319 #0D2C39 #18536B #237A9D #2EA1CF

Accessibility & contrast

On white

8.44

#18536B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#18536B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18536B

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18536B	#FFFFFF	#000000	##FFFFFF
##18536B	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47526C

Deuteranopia (green-blind)

#3B4A6B

Tritanopia (blue-blind)

#005A5B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18536b;
/* rgb */ color: rgb(24, 83, 107);
/* oklch */ color: oklch(41.6% 0.071 229.5);

Tailwind

colors: {
  custom: {
    50: '#628395',
    500: '#18536b',
    950: '#000000',
  },
}

SCSS

$custom: #18536b;
$custom-light: #628395;
$custom-dark: #000000;

JSON

{
  "hex": "#18536b",
  "rgb": {
    "r": 24,
    "g": 83,
    "b": 107
  },
  "hsl": {
    "h": 197.349,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.41639,
    "c": 0.07098,
    "h": 229.5
  },
  "luminance": 0.07442
}

Semantic roles & 50–950 ramp

primary

#18536B

secondary

#A15B3E

accent

#7141E6

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #18536B

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

Preview Lab → · Contrast checker → · Palette generator →