#18517E#18517E

#18517E is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.2% C 0.095 H 246.8°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#18517E
RGB	rgb(24, 81, 126)
HSL	hsl(206, 68%, 29%)
HSV	hsv(206, 81%, 49%)
CMYK	cmyk(81%, 35.7%, 0%, 50.6%)
CIE-LAB	lab(33.10, -1.23, -30.57)
CIE-LCH	lch(33.10, 30.60, 267.69°)
OKLab	oklab(42.2% -0.0373 -0.0869)
OKLCH	oklch(42.2% 0.095 246.8)
XYZ	xyz(7.0836, 7.5846, 20.8253)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18517E #7E4518

analogous

#187E78 #18517E #181E7E

triadic

#18517E #7E1851 #517E18

tetradic

#18517E #78187E #7E4518 #1E7E18

square

#18517E #78187E #7E4518 #1E7E18

split-complementary

#18517E #7E181E #7E7818

monochromatic

#05111A #0E304B #18517E #2272B1 #3792D9

Accessibility & contrast

On white

8.34

#18517E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#18517E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18517E

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18517E	#FFFFFF	#000000	##FFFFFF
##18517E	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5380

Deuteranopia (green-blind)

#2D4A7D

Tritanopia (blue-blind)

#005C61

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #18517e;
/* rgb */ color: rgb(24, 81, 126);
/* oklch */ color: oklch(42.2% 0.095 246.8);

Tailwind

colors: {
  custom: {
    50: '#6681a3',
    500: '#18517e',
    950: '#000000',
  },
}

SCSS

$custom: #18517e;
$custom-light: #6681a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18517e",
  "rgb": {
    "r": 24,
    "g": 81,
    "b": 126
  },
  "hsl": {
    "h": 206.471,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.42203,
    "c": 0.09461,
    "h": 246.8
  },
  "luminance": 0.07585
}

Semantic roles & 50–950 ramp

primary

#18517E

secondary

#B2723F

accent

#8A3DEB

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #18517E

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

Preview Lab → · Contrast checker → · Palette generator →