#18475B#18475B

#18475B is a dark, moderate cyan. Relative luminance 0.055; OKLCH L 37.6% C 0.061 H 229.7°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#18475B
RGB	rgb(24, 71, 91)
HSL	hsl(198, 58%, 23%)
HSV	hsv(198, 74%, 36%)
CMYK	cmyk(73.6%, 22%, 0%, 64.3%)
CIE-LAB	lab(28.00, -8.52, -16.47)
CIE-LCH	lch(28.00, 18.54, 242.65°)
OKLab	oklab(37.57% -0.0391 -0.0461)
OKLCH	oklch(37.57% 0.061 229.7)
XYZ	xyz(4.5175, 5.4555, 10.7104)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18475B #5B2C18

analogous

#185B4D #18475B #18265B

triadic

#18475B #5B1847 #475B18

tetradic

#18475B #4D185B #5B2C18 #265B18

square

#18475B #4D185B #5B2C18 #265B18

split-complementary

#18475B #5B1826 #5B4D18

monochromatic

#061318 #0B212B #18475B #256D8B #3293BC

Accessibility & contrast

On white

10.04

#18475B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#18475B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18475B

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18475B	#FFFFFF	#000000	##FFFFFF
##18475B	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D465C

Deuteranopia (green-blind)

#343F5B

Tritanopia (blue-blind)

#004D4E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #18475b;
/* rgb */ color: rgb(24, 71, 91);
/* oklch */ color: oklch(37.6% 0.061 229.7);

Tailwind

colors: {
  custom: {
    50: '#5e7a89',
    500: '#18475b',
    950: '#000000',
  },
}

SCSS

$custom: #18475b;
$custom-light: #5e7a89;
$custom-dark: #000000;

JSON

{
  "hex": "#18475b",
  "rgb": {
    "r": 24,
    "g": 71,
    "b": 91
  },
  "hsl": {
    "h": 197.91,
    "s": 58.261,
    "l": 22.549
  },
  "oklch": {
    "l": 0.37565,
    "c": 0.06051,
    "h": 229.7
  },
  "luminance": 0.05456
}

Semantic roles & 50–950 ramp

primary

#18475B

secondary

#92563D

accent

#7546E1

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05090B

muted

#797B7C

Preview Lab

Preview with #18475B

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

Preview Lab → · Contrast checker → · Palette generator →