#18406B#18406B

#18406B is a dark, moderate cyan. Relative luminance 0.049; OKLCH L 36.7% C 0.087 H 252.7°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#18406B
RGB	rgb(24, 64, 107)
HSL	hsl(211, 63%, 26%)
HSV	hsv(211, 78%, 42%)
CMYK	cmyk(77.6%, 40.2%, 0%, 58%)
CIE-LAB	lab(26.51, 2.38, -29.07)
CIE-LCH	lch(26.51, 29.17, 274.68°)
OKLab	oklab(36.67% -0.0258 -0.0828)
OKLCH	oklch(36.67% 0.087 252.7)
XYZ	xyz(4.8629, 4.9220, 14.6008)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18406B #6B4318

analogous

#18696B #18406B #19186B

triadic

#18406B #6B1840 #406B18

tetradic

#18406B #6B1869 #6B4318 #186B19

square

#18406B #6B1869 #6B4318 #186B19

split-complementary

#18406B #6B1918 #696B18

monochromatic

#060F19 #0D2239 #18406B #235E9D #2E7CCF

Accessibility & contrast

On white

10.58

#18406B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#18406B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18406B

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18406B	#FFFFFF	#000000	##FFFFFF
##18406B	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C436D

Deuteranopia (green-blind)

#1F3B6A

Tritanopia (blue-blind)

#004A50

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #18406b;
/* rgb */ color: rgb(24, 64, 107);
/* oklch */ color: oklch(36.7% 0.087 252.7);

Tailwind

colors: {
  custom: {
    50: '#617495',
    500: '#18406b',
    950: '#000000',
  },
}

SCSS

$custom: #18406b;
$custom-light: #617495;
$custom-dark: #000000;

JSON

{
  "hex": "#18406b",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 107
  },
  "hsl": {
    "h": 211.084,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.36673,
    "c": 0.08678,
    "h": 252.7
  },
  "luminance": 0.04923
}

Semantic roles & 50–950 ramp

primary

#18406B

secondary

#A1713E

accent

#9741E6

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #18406B

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

Preview Lab → · Contrast checker → · Palette generator →