#183E69#183E69

#183E69 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.0% C 0.086 H 253.6°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#183E69
RGB	rgb(24, 62, 105)
HSL	hsl(212, 63%, 25%)
HSV	hsv(212, 77%, 41%)
CMYK	cmyk(77.1%, 41%, 0%, 58.8%)
CIE-LAB	lab(25.74, 2.93, -29.02)
CIE-LCH	lch(25.74, 29.17, 275.77°)
OKLab	oklab(36.03% -0.0243 -0.0827)
OKLCH	oklch(36.03% 0.086 253.6)
XYZ	xyz(4.6482, 4.6588, 14.0161)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E69 #694318

analogous

#186669 #183E69 #1A1869

triadic

#183E69 #69183E #3E6918

tetradic

#183E69 #691866 #694318 #18691A

square

#183E69 #691866 #694318 #18691A

split-complementary

#183E69 #691A18 #666918

monochromatic

#060F19 #0D2137 #183E69 #235B9B #2F79CD

Accessibility & contrast

On white

10.87

#183E69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#183E69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E69

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E69	#FFFFFF	#000000	##FFFFFF
##183E69	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A416B

Deuteranopia (green-blind)

#1D3A68

Tritanopia (blue-blind)

#00484E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183e69;
/* rgb */ color: rgb(24, 62, 105);
/* oklch */ color: oklch(36.0% 0.086 253.6);

Tailwind

colors: {
  custom: {
    50: '#617294',
    500: '#183e69',
    950: '#000000',
  },
}

SCSS

$custom: #183e69;
$custom-light: #617294;
$custom-dark: #000000;

JSON

{
  "hex": "#183e69",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 105
  },
  "hsl": {
    "h": 211.852,
    "s": 62.791,
    "l": 25.294
  },
  "oklch": {
    "l": 0.3603,
    "c": 0.08621,
    "h": 253.6
  },
  "luminance": 0.04659
}

Semantic roles & 50–950 ramp

primary

#183E69

secondary

#9F713E

accent

#9942E6

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05080D

muted

#7A7B7E

Preview Lab

Preview with #183E69

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

Preview Lab → · Contrast checker → · Palette generator →