#18508C#18508C

#18508C is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.9% C 0.115 H 253.5°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#18508C
RGB	rgb(24, 80, 140)
HSL	hsl(211, 71%, 32%)
HSV	hsv(211, 83%, 55%)
CMYK	cmyk(82.9%, 42.9%, 0%, 45.1%)
CIE-LAB	lab(33.61, 5.06, -38.37)
CIE-LCH	lch(33.61, 38.71, 277.52°)
OKLab	oklab(42.87% -0.0326 -0.1098)
OKLCH	oklch(42.87% 0.115 253.5)
XYZ	xyz(7.9772, 7.8240, 25.8956)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18508C #8C5418

analogous

#188A8C #18508C #1A188C

triadic

#18508C #8C1850 #508C18

tetradic

#18508C #8C188A #8C5418 #188C1A

square

#18508C #8C188A #8C5418 #188C1A

split-complementary

#18508C #8C1A18 #8A8C18

monochromatic

#061424 #0F3258 #18508C #216EC0 #408CDE

Accessibility & contrast

On white

8.19

#18508C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#18508C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18508C

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18508C	#FFFFFF	#000000	##FFFFFF
##18508C	1.00	8.19	2.57	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32558E

Deuteranopia (green-blind)

#1D4A8B

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #18508c;
/* rgb */ color: rgb(24, 80, 140);
/* oklch */ color: oklch(42.9% 0.115 253.5);

Tailwind

colors: {
  custom: {
    50: '#6980ae',
    500: '#18508c',
    950: '#000000',
  },
}

SCSS

$custom: #18508c;
$custom-light: #6980ae;
$custom-dark: #000000;

JSON

{
  "hex": "#18508c",
  "rgb": {
    "r": 24,
    "g": 80,
    "b": 140
  },
  "hsl": {
    "h": 211.034,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.42872,
    "c": 0.11458,
    "h": 253.5
  },
  "luminance": 0.07825
}

Semantic roles & 50–950 ramp

primary

#18508C

secondary

#BF8241

accent

#973AED

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #18508C

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

Preview Lab → · Contrast checker → · Palette generator →