#18435B#18435B

#18435B is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 36.5% C 0.063 H 236.6°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#18435B
RGB	rgb(24, 67, 91)
HSL	hsl(201, 58%, 23%)
HSV	hsv(201, 74%, 36%)
CMYK	cmyk(73.6%, 26.4%, 0%, 64.3%)
CIE-LAB	lab(26.63, -5.99, -18.59)
CIE-LCH	lch(26.63, 19.53, 252.15°)
OKLab	oklab(36.48% -0.0344 -0.0523)
OKLCH	oklch(36.48% 0.063 236.6)
XYZ	xyz(4.2714, 4.9634, 10.6284)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18435B #5B3018

analogous

#185B52 #18435B #18215B

triadic

#18435B #5B1843 #435B18

tetradic

#18435B #52185B #5B3018 #215B18

square

#18435B #52185B #5B3018 #215B18

split-complementary

#18435B #5B1821 #5B5218

monochromatic

#061218 #0B1F2B #18435B #25678B #328ABC

Accessibility & contrast

On white

10.54

#18435B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#18435B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18435B

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18435B	#FFFFFF	#000000	##FFFFFF
##18435B	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38435C

Deuteranopia (green-blind)

#2E3C5B

Tritanopia (blue-blind)

#00494B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #18435b;
/* rgb */ color: rgb(24, 67, 91);
/* oklch */ color: oklch(36.5% 0.063 236.6);

Tailwind

colors: {
  custom: {
    50: '#5e7789',
    500: '#18435b',
    950: '#000000',
  },
}

SCSS

$custom: #18435b;
$custom-light: #5e7789;
$custom-dark: #000000;

JSON

{
  "hex": "#18435b",
  "rgb": {
    "r": 24,
    "g": 67,
    "b": 91
  },
  "hsl": {
    "h": 201.493,
    "s": 58.261,
    "l": 22.549
  },
  "oklch": {
    "l": 0.36478,
    "c": 0.0626,
    "h": 236.6
  },
  "luminance": 0.04964
}

Semantic roles & 50–950 ramp

primary

#18435B

secondary

#925B3D

accent

#7E46E1

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #18435B

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

Preview Lab → · Contrast checker → · Palette generator →