#18598F#18598F

#18598F is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.3% C 0.109 H 248.5°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#18598F
RGB	rgb(24, 89, 143)
HSL	hsl(207, 71%, 33%)
HSV	hsv(207, 83%, 56%)
CMYK	cmyk(83.2%, 37.8%, 0%, 43.9%)
CIE-LAB	lab(36.60, 0.39, -35.45)
CIE-LCH	lch(36.60, 35.45, 270.63°)
OKLab	oklab(45.26% -0.0399 -0.1011)
OKLCH	oklch(45.26% 0.109 248.5)
XYZ	xyz(8.9051, 9.3210, 27.3111)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18598F #8F4E18

analogous

#188F89 #18598F #181E8F

triadic

#18598F #8F1859 #598F18

tetradic

#18598F #89188F #8F4E18 #1E8F18

square

#18598F #89188F #8F4E18 #1E8F18

split-complementary

#18598F #8F181E #8F8918

monochromatic

#061826 #0F385B #18598F #217AC3 #4298DF

Accessibility & contrast

On white

7.33

#18598F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#18598F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18598F

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18598F	#FFFFFF	#000000	##FFFFFF
##18598F	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5C91

Deuteranopia (green-blind)

#2D518E

Tritanopia (blue-blind)

#00666D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #18598f;
/* rgb */ color: rgb(24, 89, 143);
/* oklch */ color: oklch(45.3% 0.109 248.5);

Tailwind

colors: {
  custom: {
    50: '#6a87b0',
    500: '#18598f',
    950: '#000000',
  },
}

SCSS

$custom: #18598f;
$custom-light: #6a87b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18598f",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 143
  },
  "hsl": {
    "h": 207.227,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.45262,
    "c": 0.10866,
    "h": 248.5
  },
  "luminance": 0.09322
}

Semantic roles & 50–950 ramp

primary

#18598F

secondary

#C07C43

accent

#8C3AEE

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #18598F

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

Preview Lab → · Contrast checker → · Palette generator →