#18539F#18539F

#18539F is a dark, vivid cyan. Relative luminance 0.089; OKLCH L 44.9% C 0.137 H 256.9°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#18539F
RGB	rgb(24, 83, 159)
HSL	hsl(214, 74%, 36%)
HSV	hsv(214, 85%, 62%)
CMYK	cmyk(84.9%, 47.8%, 0%, 37.6%)
CIE-LAB	lab(35.76, 10.77, -46.44)
CIE-LCH	lch(35.76, 47.68, 283.06°)
OKLab	oklab(44.93% -0.0311 -0.1335)
OKLCH	oklch(44.93% 0.137 256.9)
XYZ	xyz(9.7256, 8.8827, 33.9961)
Luminance	0.0888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18539F #9F6418

analogous

#18969F #18539F #21189F

triadic

#18539F #9F1853 #539F18

tetradic

#18539F #9F1896 #9F6418 #189F21

square

#18539F #9F1896 #9F6418 #189F21

split-complementary

#18539F #9F2118 #969F18

monochromatic

#081B35 #10376A #18539F #206FD4 #4D8FE4

Accessibility & contrast

On white

7.56

#18539F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#18539F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18539F

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18539F	#FFFFFF	#000000	##FFFFFF
##18539F	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#285BA2

Deuteranopia (green-blind)

#004E9D

Tritanopia (blue-blind)

#006571

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #18539f;
/* rgb */ color: rgb(24, 83, 159);
/* oklch */ color: oklch(44.9% 0.137 256.9);

Tailwind

colors: {
  custom: {
    50: '#6e82bc',
    500: '#18539f',
    950: '#000000',
  },
}

SCSS

$custom: #18539f;
$custom-light: #6e82bc;
$custom-dark: #000000;

JSON

{
  "hex": "#18539f",
  "rgb": {
    "r": 24,
    "g": 83,
    "b": 159
  },
  "hsl": {
    "h": 213.778,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.44931,
    "c": 0.1371,
    "h": 256.9
  },
  "luminance": 0.08884
}

Semantic roles & 50–950 ramp

primary

#18539F

secondary

#C6914D

accent

#A037F0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #18539F

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

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