#18487B#18487B

#18487B is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.8% C 0.100 H 252.9°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#18487B
RGB	rgb(24, 72, 123)
HSL	hsl(211, 67%, 29%)
HSV	hsv(211, 80%, 48%)
CMYK	cmyk(80.5%, 41.5%, 0%, 51.8%)
CIE-LAB	lab(30.05, 3.49, -33.55)
CIE-LCH	lch(30.05, 33.73, 275.95°)
OKLab	oklab(39.76% -0.0295 -0.0958)
OKLCH	oklch(39.76% 0.1 252.9)
XYZ	xyz(6.2679, 6.2582, 19.6127)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18487B #7B4B18

analogous

#187A7B #18487B #1A187B

triadic

#18487B #7B1848 #487B18

tetradic

#18487B #7B187A #7B4B18 #187B1A

square

#18487B #7B187A #7B4B18 #187B1A

split-complementary

#18487B #7B1A18 #7A7B18

monochromatic

#050F1A #0E2A48 #18487B #2266AE #3684D8

Accessibility & contrast

On white

9.33

#18487B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#18487B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18487B

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18487B	#FFFFFF	#000000	##FFFFFF
##18487B	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304C7D

Deuteranopia (green-blind)

#1F437A

Tritanopia (blue-blind)

#00545B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #18487b;
/* rgb */ color: rgb(24, 72, 123);
/* oklch */ color: oklch(39.8% 0.100 252.9);

Tailwind

colors: {
  custom: {
    50: '#657aa1',
    500: '#18487b',
    950: '#000000',
  },
}

SCSS

$custom: #18487b;
$custom-light: #657aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#18487b",
  "rgb": {
    "r": 24,
    "g": 72,
    "b": 123
  },
  "hsl": {
    "h": 210.909,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39757,
    "c": 0.10025,
    "h": 252.9
  },
  "luminance": 0.06259
}

Semantic roles & 50–950 ramp

primary

#18487B

secondary

#B0793F

accent

#973EEA

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090F

muted

#7A7B7E

Preview Lab

Preview with #18487B

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

Preview Lab → · Contrast checker → · Palette generator →