#18509B#18509B

#18509B is a dark, vivid cyan. Relative luminance 0.083; OKLCH L 43.9% C 0.135 H 257.4°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#18509B
RGB	rgb(24, 80, 155)
HSL	hsl(214, 73%, 35%)
HSV	hsv(214, 85%, 61%)
CMYK	cmyk(84.5%, 48.4%, 0%, 39.2%)
CIE-LAB	lab(34.59, 11.16, -45.91)
CIE-LCH	lch(34.59, 47.25, 283.66°)
OKLab	oklab(43.95% -0.0295 -0.132)
OKLCH	oklch(43.95% 0.135 257.4)
XYZ	xyz(9.1596, 8.2969, 32.1227)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18509B #9B6318

analogous

#18919B #18509B #21189B

triadic

#18509B #9B1850 #509B18

tetradic

#18509B #9B1891 #9B6318 #189B21

square

#18509B #9B1891 #9B6318 #189B21

split-complementary

#18509B #9B2118 #919B18

monochromatic

#081931 #103566 #18509B #206BD0 #4A8CE3

Accessibility & contrast

On white

7.90

#18509B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#18509B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18509B

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18509B	#FFFFFF	#000000	##FFFFFF
##18509B	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25589E

Deuteranopia (green-blind)

#004C9A

Tritanopia (blue-blind)

#00626E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #18509b;
/* rgb */ color: rgb(24, 80, 155);
/* oklch */ color: oklch(43.9% 0.135 257.4);

Tailwind

colors: {
  custom: {
    50: '#6d80b9',
    500: '#18509b',
    950: '#000000',
  },
}

SCSS

$custom: #18509b;
$custom-light: #6d80b9;
$custom-dark: #000000;

JSON

{
  "hex": "#18509b",
  "rgb": {
    "r": 24,
    "g": 80,
    "b": 155
  },
  "hsl": {
    "h": 214.351,
    "s": 73.184,
    "l": 35.098
  },
  "oklch": {
    "l": 0.43947,
    "c": 0.13527,
    "h": 257.4
  },
  "luminance": 0.08298
}

Semantic roles & 50–950 ramp

primary

#18509B

secondary

#C5904A

accent

#A138F0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #18509B

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

Preview Lab → · Contrast checker → · Palette generator →