#183A60#183A60

#183A60 is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.078 H 253.2°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#183A60
RGB	rgb(24, 58, 96)
HSL	hsl(212, 60%, 24%)
HSV	hsv(212, 75%, 38%)
CMYK	cmyk(75%, 39.6%, 0%, 62.4%)
CIE-LAB	lab(23.88, 2.01, -26.15)
CIE-LCH	lch(23.88, 26.23, 274.40°)
OKLab	oklab(34.4% -0.0225 -0.0744)
OKLCH	oklch(34.4% 0.078 253.2)
XYZ	xyz(4.0003, 4.0644, 11.6377)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A60 #603E18

analogous

#185E60 #183A60 #1A1860

triadic

#183A60 #60183A #3A6018

tetradic

#183A60 #60185E #603E18 #18601A

square

#183A60 #60185E #603E18 #18601A

split-complementary

#183A60 #601A18 #5E6018

monochromatic

#060F18 #0C1C2F #183A60 #245891 #3075C2

Accessibility & contrast

On white

11.58

#183A60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#183A60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A60

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A60	#FFFFFF	#000000	##FFFFFF
##183A60	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293C62

Deuteranopia (green-blind)

#1E365F

Tritanopia (blue-blind)

#004348

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183a60;
/* rgb */ color: rgb(24, 58, 96);
/* oklch */ color: oklch(34.4% 0.078 253.2);

Tailwind

colors: {
  custom: {
    50: '#5f6f8d',
    500: '#183a60',
    950: '#000000',
  },
}

SCSS

$custom: #183a60;
$custom-light: #5f6f8d;
$custom-dark: #000000;

JSON

{
  "hex": "#183a60",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 96
  },
  "hsl": {
    "h": 211.667,
    "s": 60,
    "l": 23.529
  },
  "oklch": {
    "l": 0.34402,
    "c": 0.07772,
    "h": 253.2
  },
  "luminance": 0.04065
}

Semantic roles & 50–950 ramp

primary

#183A60

secondary

#966C3D

accent

#9845E3

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #183A60

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

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