#18597F#18597F

#18597F is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.3% C 0.089 H 239.6°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#18597F
RGB	rgb(24, 89, 127)
HSL	hsl(202, 68%, 30%)
HSV	hsv(202, 81%, 50%)
CMYK	cmyk(81.1%, 29.9%, 0%, 50.2%)
CIE-LAB	lab(35.73, -5.91, -27.04)
CIE-LCH	lch(35.73, 27.68, 257.67°)
OKLab	oklab(44.3% -0.0449 -0.0765)
OKLCH	oklch(44.3% 0.089 239.6)
XYZ	xyz(7.7783, 8.8703, 21.3767)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18597F #7F3E18

analogous

#187F72 #18597F #18267F

triadic

#18597F #7F1859 #597F18

tetradic

#18597F #72187F #7F3E18 #267F18

square

#18597F #72187F #7F3E18 #267F18

split-complementary

#18597F #7F1826 #7F7218

monochromatic

#05121A #0E354C #18597F #227DB2 #389ED9

Accessibility & contrast

On white

7.57

#18597F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#18597F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18597F

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18597F	#FFFFFF	#000000	##FFFFFF
##18597F	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475981

Deuteranopia (green-blind)

#39507E

Tritanopia (blue-blind)

#006366

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #18597f;
/* rgb */ color: rgb(24, 89, 127);
/* oklch */ color: oklch(44.3% 0.089 239.6);

Tailwind

colors: {
  custom: {
    50: '#6687a4',
    500: '#18597f',
    950: '#000000',
  },
}

SCSS

$custom: #18597f;
$custom-light: #6687a4;
$custom-dark: #000000;

JSON

{
  "hex": "#18597f",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 127
  },
  "hsl": {
    "h": 202.136,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.443,
    "c": 0.08873,
    "h": 239.6
  },
  "luminance": 0.08871
}

Semantic roles & 50–950 ramp

primary

#18597F

secondary

#B36A3F

accent

#7D3DEB

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #18597F

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

Preview Lab → · Contrast checker → · Palette generator →