#18517A#18517A

#18517A is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.0% C 0.089 H 244.5°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#18517A
RGB	rgb(24, 81, 122)
HSL	hsl(205, 67%, 29%)
HSV	hsv(205, 80%, 48%)
CMYK	cmyk(80.3%, 33.6%, 0%, 52.2%)
CIE-LAB	lab(32.88, -2.82, -28.44)
CIE-LCH	lch(32.88, 28.58, 264.33°)
OKLab	oklab(41.96% -0.0385 -0.0807)
OKLCH	oklch(41.96% 0.089 244.5)
XYZ	xyz(6.8306, 7.4834, 19.4930)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18517A #7A4118

analogous

#187A72 #18517A #18207A

triadic

#18517A #7A1851 #517A18

tetradic

#18517A #72187A #7A4118 #207A18

square

#18517A #72187A #7A4118 #207A18

split-complementary

#18517A #7A1820 #7A7218

monochromatic

#05111A #0E2F47 #18517A #2273AD #3593D7

Accessibility & contrast

On white

8.41

#18517A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#18517A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18517A

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18517A	#FFFFFF	#000000	##FFFFFF
##18517A	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E527C

Deuteranopia (green-blind)

#304979

Tritanopia (blue-blind)

#005B60

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18517a;
/* rgb */ color: rgb(24, 81, 122);
/* oklch */ color: oklch(42.0% 0.089 244.5);

Tailwind

colors: {
  custom: {
    50: '#6581a0',
    500: '#18517a',
    950: '#000000',
  },
}

SCSS

$custom: #18517a;
$custom-light: #6581a0;
$custom-dark: #000000;

JSON

{
  "hex": "#18517a",
  "rgb": {
    "r": 24,
    "g": 81,
    "b": 122
  },
  "hsl": {
    "h": 205.102,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.41958,
    "c": 0.08944,
    "h": 244.5
  },
  "luminance": 0.07484
}

Semantic roles & 50–950 ramp

primary

#18517A

secondary

#AF6E3F

accent

#863EEA

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0F

muted

#7A7C7E

Preview Lab

Preview with #18517A

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

Preview Lab → · Contrast checker → · Palette generator →