#18547B#18547B

#18547B is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 42.8% C 0.088 H 242.1°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#18547B
RGB	rgb(24, 84, 123)
HSL	hsl(204, 67%, 29%)
HSV	hsv(204, 80%, 48%)
CMYK	cmyk(80.5%, 31.7%, 0%, 51.8%)
CIE-LAB	lab(33.91, -4.34, -27.45)
CIE-LCH	lch(33.91, 27.79, 261.02°)
OKLab	oklab(42.79% -0.0412 -0.0778)
OKLCH	oklch(42.79% 0.088 242.1)
XYZ	xyz(7.1208, 7.9640, 19.8970)
Luminance	0.0796 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18547B #7B3F18

analogous

#187B71 #18547B #18237B

triadic

#18547B #7B1854 #547B18

tetradic

#18547B #71187B #7B3F18 #237B18

square

#18547B #71187B #7B3F18 #237B18

split-complementary

#18547B #7B1823 #7B7118

monochromatic

#05111A #0E3148 #18547B #2277AE #3698D8

Accessibility & contrast

On white

8.10

#18547B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#18547B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18547B

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18547B	#FFFFFF	#000000	##FFFFFF
##18547B	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42557D

Deuteranopia (green-blind)

#344C7A

Tritanopia (blue-blind)

#005E62

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #18547b;
/* rgb */ color: rgb(24, 84, 123);
/* oklch */ color: oklch(42.8% 0.088 242.1);

Tailwind

colors: {
  custom: {
    50: '#6583a1',
    500: '#18547b',
    950: '#000000',
  },
}

SCSS

$custom: #18547b;
$custom-light: #6583a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18547b",
  "rgb": {
    "r": 24,
    "g": 84,
    "b": 123
  },
  "hsl": {
    "h": 203.636,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.42786,
    "c": 0.08803,
    "h": 242.1
  },
  "luminance": 0.07965
}

Semantic roles & 50–950 ramp

primary

#18547B

secondary

#B06B3F

accent

#823EEA

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060A0F

muted

#7A7C7E

Preview Lab

Preview with #18547B

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

Preview Lab → · Contrast checker → · Palette generator →