#183A65#183A65

#183A65 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.085 H 255.6°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#183A65
RGB	rgb(24, 58, 101)
HSL	hsl(214, 62%, 25%)
HSV	hsv(214, 76%, 40%)
CMYK	cmyk(76.2%, 42.6%, 0%, 60.4%)
CIE-LAB	lab(24.19, 4.06, -28.91)
CIE-LCH	lch(24.19, 29.19, 277.99°)
OKLab	oklab(34.74% -0.0212 -0.0825)
OKLCH	oklch(34.74% 0.085 255.6)
XYZ	xyz(4.2378, 4.1594, 12.8889)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A65 #654318

analogous

#186165 #183A65 #1C1865

triadic

#183A65 #65183A #3A6518

tetradic

#183A65 #651861 #654318 #18651C

square

#183A65 #651861 #654318 #18651C

split-complementary

#183A65 #651C18 #616518

monochromatic

#060E19 #0C1E34 #183A65 #245696 #3073C8

Accessibility & contrast

On white

11.46

#183A65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#183A65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A65

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A65	#FFFFFF	#000000	##FFFFFF
##183A65	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263D67

Deuteranopia (green-blind)

#1A3664

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183a65;
/* rgb */ color: rgb(24, 58, 101);
/* oklch */ color: oklch(34.7% 0.085 255.6);

Tailwind

colors: {
  custom: {
    50: '#606f91',
    500: '#183a65',
    950: '#000000',
  },
}

SCSS

$custom: #183a65;
$custom-light: #606f91;
$custom-dark: #000000;

JSON

{
  "hex": "#183a65",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 101
  },
  "hsl": {
    "h": 213.506,
    "s": 61.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34743,
    "c": 0.08513,
    "h": 255.6
  },
  "luminance": 0.0416
}

Semantic roles & 50–950 ramp

primary

#183A65

secondary

#9B723E

accent

#9D43E5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05070D

muted

#7A7A7D

Preview Lab

Preview with #183A65

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

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