#18507C#18507C

#18507C is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.8% C 0.093 H 246.6°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#18507C
RGB	rgb(24, 80, 124)
HSL	hsl(206, 68%, 29%)
HSV	hsv(206, 81%, 49%)
CMYK	cmyk(80.6%, 35.5%, 0%, 51.4%)
CIE-LAB	lab(32.67, -1.38, -30.02)
CIE-LCH	lch(32.67, 30.05, 267.36°)
OKLab	oklab(41.83% -0.0369 -0.0853)
OKLCH	oklch(41.83% 0.093 246.6)
XYZ	xyz(6.8820, 7.3859, 20.1278)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18507C #7C4418

analogous

#187C76 #18507C #181E7C

triadic

#18507C #7C1850 #507C18

tetradic

#18507C #76187C #7C4418 #1E7C18

square

#18507C #76187C #7C4418 #1E7C18

split-complementary

#18507C #7C181E #7C7618

monochromatic

#05111A #0E2F49 #18507C #2271AF #3691D8

Accessibility & contrast

On white

8.48

#18507C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#18507C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18507C

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18507C	#FFFFFF	#000000	##FFFFFF
##18507C	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C527E

Deuteranopia (green-blind)

#2D497B

Tritanopia (blue-blind)

#005B60

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18507c;
/* rgb */ color: rgb(24, 80, 124);
/* oklch */ color: oklch(41.8% 0.093 246.6);

Tailwind

colors: {
  custom: {
    50: '#6580a2',
    500: '#18507c',
    950: '#000000',
  },
}

SCSS

$custom: #18507c;
$custom-light: #6580a2;
$custom-dark: #000000;

JSON

{
  "hex": "#18507c",
  "rgb": {
    "r": 24,
    "g": 80,
    "b": 124
  },
  "hsl": {
    "h": 206.4,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.41826,
    "c": 0.09299,
    "h": 246.6
  },
  "luminance": 0.07387
}

Semantic roles & 50–950 ramp

primary

#18507C

secondary

#B1713F

accent

#8A3DEA

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#060A0F

muted

#7A7C7F

Preview Lab

Preview with #18507C

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

Preview Lab → · Contrast checker → · Palette generator →