#18509D#18509D

#18509D is a dark, vivid cyan. Relative luminance 0.084; OKLCH L 44.1% C 0.138 H 257.8°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#18509D
RGB	rgb(24, 80, 157)
HSL	hsl(215, 73%, 35%)
HSV	hsv(215, 85%, 62%)
CMYK	cmyk(84.7%, 49%, 0%, 38.4%)
CIE-LAB	lab(34.73, 11.97, -46.90)
CIE-LCH	lch(34.73, 48.40, 284.32°)
OKLab	oklab(44.1% -0.0292 -0.1349)
OKLCH	oklch(44.1% 0.138 257.8)
XYZ	xyz(9.3289, 8.3647, 33.0146)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18509D #9D6518

analogous

#18929D #18509D #22189D

triadic

#18509D #9D1850 #509D18

tetradic

#18509D #9D1892 #9D6518 #189D22

square

#18509D #9D1892 #9D6518 #189D22

split-complementary

#18509D #9D2218 #929D18

monochromatic

#081A33 #103568 #18509D #206BD2 #4C8CE4

Accessibility & contrast

On white

7.86

#18509D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#18509D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18509D

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18509D	#FFFFFF	#000000	##FFFFFF
##18509D	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2358A0

Deuteranopia (green-blind)

#004C9B

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #18509d;
/* rgb */ color: rgb(24, 80, 157);
/* oklch */ color: oklch(44.1% 0.138 257.8);

Tailwind

colors: {
  custom: {
    50: '#6d80ba',
    500: '#18509d',
    950: '#000000',
  },
}

SCSS

$custom: #18509d;
$custom-light: #6d80ba;
$custom-dark: #000000;

JSON

{
  "hex": "#18509d",
  "rgb": {
    "r": 24,
    "g": 80,
    "b": 157
  },
  "hsl": {
    "h": 214.737,
    "s": 73.481,
    "l": 35.49
  },
  "oklch": {
    "l": 0.44097,
    "c": 0.13803,
    "h": 257.8
  },
  "luminance": 0.08366
}

Semantic roles & 50–950 ramp

primary

#18509D

secondary

#C5924B

accent

#A238F0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #18509D

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

Preview Lab → · Contrast checker → · Palette generator →