#18538F#18538F

#18538F is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.8% C 0.115 H 252.6°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#18538F
RGB	rgb(24, 83, 143)
HSL	hsl(210, 71%, 33%)
HSV	hsv(210, 83%, 56%)
CMYK	cmyk(83.2%, 42%, 0%, 43.9%)
CIE-LAB	lab(34.73, 4.29, -38.42)
CIE-LCH	lch(34.73, 38.66, 276.37°)
OKLab	oklab(43.8% -0.0345 -0.1099)
OKLCH	oklch(43.8% 0.115 252.6)
XYZ	xyz(8.4260, 8.3628, 27.1514)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18538F #8F5418

analogous

#188E8F #18538F #19188F

triadic

#18538F #8F1853 #538F18

tetradic

#18538F #8F188E #8F5418 #188F19

square

#18538F #8F188E #8F5418 #188F19

split-complementary

#18538F #8F1918 #8E8F18

monochromatic

#061626 #0F355B #18538F #2171C3 #4290DF

Accessibility & contrast

On white

7.86

#18538F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#18538F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18538F

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18538F	#FFFFFF	#000000	##FFFFFF
##18538F	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)

#355791

Deuteranopia (green-blind)

#214D8E

Tritanopia (blue-blind)

#00616A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #18538f;
/* rgb */ color: rgb(24, 83, 143);
/* oklch */ color: oklch(43.8% 0.115 252.6);

Tailwind

colors: {
  custom: {
    50: '#6a82b0',
    500: '#18538f',
    950: '#000000',
  },
}

SCSS

$custom: #18538f;
$custom-light: #6a82b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18538f",
  "rgb": {
    "r": 24,
    "g": 83,
    "b": 143
  },
  "hsl": {
    "h": 210.252,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.438,
    "c": 0.11522,
    "h": 252.6
  },
  "luminance": 0.08364
}

Semantic roles & 50–950 ramp

primary

#18538F

secondary

#C08243

accent

#953AEE

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #18538F

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

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