#18507D#18507D

#18507D is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.9% C 0.094 H 247.1°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#18507D
RGB	rgb(24, 80, 125)
HSL	hsl(207, 68%, 29%)
HSV	hsv(207, 81%, 49%)
CMYK	cmyk(80.8%, 36%, 0%, 51%)
CIE-LAB	lab(32.73, -0.99, -30.55)
CIE-LCH	lch(32.73, 30.57, 268.15°)
OKLab	oklab(41.89% -0.0366 -0.0869)
OKLCH	oklch(41.89% 0.094 247.1)
XYZ	xyz(6.9456, 7.4114, 20.4625)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18507D #7D4518

analogous

#187D78 #18507D #181D7D

triadic

#18507D #7D1850 #507D18

tetradic

#18507D #78187D #7D4518 #1D7D18

square

#18507D #78187D #7D4518 #1D7D18

split-complementary

#18507D #7D181D #7D7818

monochromatic

#05101A #0E2F4A #18507D #2271B0 #3791D9

Accessibility & contrast

On white

8.46

#18507D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#18507D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18507D

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18507D	#FFFFFF	#000000	##FFFFFF
##18507D	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B527F

Deuteranopia (green-blind)

#2C497C

Tritanopia (blue-blind)

#005B60

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18507d;
/* rgb */ color: rgb(24, 80, 125);
/* oklch */ color: oklch(41.9% 0.094 247.1);

Tailwind

colors: {
  custom: {
    50: '#6680a3',
    500: '#18507d',
    950: '#000000',
  },
}

SCSS

$custom: #18507d;
$custom-light: #6680a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18507d",
  "rgb": {
    "r": 24,
    "g": 80,
    "b": 125
  },
  "hsl": {
    "h": 206.733,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.41888,
    "c": 0.0943,
    "h": 247.1
  },
  "luminance": 0.07412
}

Semantic roles & 50–950 ramp

primary

#18507D

secondary

#B2723F

accent

#8A3DEB

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #18507D

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

Preview Lab → · Contrast checker → · Palette generator →