#18304F#18304F

#18304F is a dark, moderate cyan. Relative luminance 0.029; OKLCH L 30.7% C 0.064 H 255.6°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#18304F
RGB	rgb(24, 48, 79)
HSL	hsl(214, 53%, 20%)
HSV	hsv(214, 70%, 31%)
CMYK	cmyk(69.6%, 39.2%, 0%, 69%)
CIE-LAB	lab(19.52, 2.11, -21.81)
CIE-LCH	lch(19.52, 21.92, 275.52°)
OKLab	oklab(30.67% -0.0159 -0.0618)
OKLCH	oklch(30.67% 0.064 255.6)
XYZ	xyz(2.8444, 2.8723, 7.8001)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18304F #4F3718

analogous

#184B4F #18304F #1B184F

triadic

#18304F #4F1830 #304F18

tetradic

#18304F #4F184B #4F3718 #184F1B

square

#18304F #4F184B #4F3718 #184F1B

split-complementary

#18304F #4F1B18 #4B4F18

monochromatic

#070E17 #0A1320 #18304F #264D7E #3569AD

Accessibility & contrast

On white

13.34

#18304F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#18304F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18304F

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18304F	#FFFFFF	#000000	##FFFFFF
##18304F	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233250

Deuteranopia (green-blind)

#1B2D4E

Tritanopia (blue-blind)

#00373B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #18304f;
/* rgb */ color: rgb(24, 48, 79);
/* oklch */ color: oklch(30.7% 0.064 255.6);

Tailwind

colors: {
  custom: {
    50: '#5b6880',
    500: '#18304f',
    950: '#000000',
  },
}

SCSS

$custom: #18304f;
$custom-light: #5b6880;
$custom-dark: #000000;

JSON

{
  "hex": "#18304f",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 79
  },
  "hsl": {
    "h": 213.818,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.30665,
    "c": 0.06386,
    "h": 255.6
  },
  "luminance": 0.02873
}

Semantic roles & 50–950 ramp

primary

#18304F

secondary

#86663D

accent

#9D4BDD

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #18304F

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

Preview Lab → · Contrast checker → · Palette generator →