#18405E#18405E

#18405E is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 35.8% C 0.069 H 244.2°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#18405E
RGB	rgb(24, 64, 94)
HSL	hsl(206, 59%, 23%)
HSV	hsv(206, 74%, 37%)
CMYK	cmyk(74.5%, 31.9%, 0%, 63.1%)
CIE-LAB	lab(25.77, -2.85, -21.88)
CIE-LCH	lch(25.77, 22.06, 262.56°)
OKLab	oklab(35.85% -0.0299 -0.0618)
OKLCH	oklch(35.85% 0.069 244.2)
XYZ	xyz(4.2297, 4.6687, 11.2657)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18405E #5E3618

analogous

#185E59 #18405E #181D5E

triadic

#18405E #5E1840 #405E18

tetradic

#18405E #59185E #5E3618 #1D5E18

square

#18405E #59185E #5E3618 #1D5E18

split-complementary

#18405E #5E181D #5E5918

monochromatic

#061118 #0C1F2D #18405E #24618F #3182C0

Accessibility & contrast

On white

10.86

#18405E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#18405E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18405E

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18405E	#FFFFFF	#000000	##FFFFFF
##18405E	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32415F

Deuteranopia (green-blind)

#293A5D

Tritanopia (blue-blind)

#00474B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #18405e;
/* rgb */ color: rgb(24, 64, 94);
/* oklch */ color: oklch(35.8% 0.069 244.2);

Tailwind

colors: {
  custom: {
    50: '#5f748c',
    500: '#18405e',
    950: '#000000',
  },
}

SCSS

$custom: #18405e;
$custom-light: #5f748c;
$custom-dark: #000000;

JSON

{
  "hex": "#18405e",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 94
  },
  "hsl": {
    "h": 205.714,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.35847,
    "c": 0.06867,
    "h": 244.2
  },
  "luminance": 0.04669
}

Semantic roles & 50–950 ramp

primary

#18405E

secondary

#94633D

accent

#8945E3

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #18405E

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

Preview Lab → · Contrast checker → · Palette generator →