#18597E#18597E

#18597E is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.2% C 0.088 H 238.9°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#18597E
RGB	rgb(24, 89, 126)
HSL	hsl(202, 68%, 29%)
HSV	hsv(202, 81%, 49%)
CMYK	cmyk(81%, 29.4%, 0%, 50.6%)
CIE-LAB	lab(35.68, -6.30, -26.51)
CIE-LCH	lch(35.68, 27.25, 256.64°)
OKLab	oklab(44.24% -0.0452 -0.075)
OKLCH	oklch(44.24% 0.088 238.9)
XYZ	xyz(7.7135, 8.8444, 21.0352)
Luminance	0.0885 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18597E #7E3D18

analogous

#187E70 #18597E #18267E

triadic

#18597E #7E1859 #597E18

tetradic

#18597E #70187E #7E3D18 #267E18

square

#18597E #70187E #7E3D18 #267E18

split-complementary

#18597E #7E1826 #7E7018

monochromatic

#05121A #0E354B #18597E #227DB1 #379ED9

Accessibility & contrast

On white

7.58

#18597E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#18597E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18597E

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18597E	#FFFFFF	#000000	##FFFFFF
##18597E	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475980

Deuteranopia (green-blind)

#3A507D

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #18597e;
/* rgb */ color: rgb(24, 89, 126);
/* oklch */ color: oklch(44.2% 0.088 238.9);

Tailwind

colors: {
  custom: {
    50: '#6687a3',
    500: '#18597e',
    950: '#000000',
  },
}

SCSS

$custom: #18597e;
$custom-light: #6687a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18597e",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 201.765,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.44243,
    "c": 0.08757,
    "h": 238.9
  },
  "luminance": 0.08845
}

Semantic roles & 50–950 ramp

primary

#18597E

secondary

#B2693F

accent

#7C3DEB

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #18597E

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

Preview Lab → · Contrast checker → · Palette generator →