#183C65#183C65

#183C65 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.083 H 253.7°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#183C65
RGB	rgb(24, 60, 101)
HSL	hsl(212, 62%, 25%)
HSV	hsv(212, 76%, 40%)
CMYK	cmyk(76.2%, 40.6%, 0%, 60.4%)
CIE-LAB	lab(24.84, 2.67, -27.87)
CIE-LCH	lch(24.84, 28.00, 275.48°)
OKLab	oklab(35.25% -0.0233 -0.0794)
OKLCH	oklch(35.25% 0.083 253.7)
XYZ	xyz(4.3406, 4.3650, 12.9232)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C65 #654118

analogous

#186365 #183C65 #1B1865

triadic

#183C65 #65183C #3C6518

tetradic

#183C65 #651863 #654118 #18651B

square

#183C65 #651863 #654118 #18651B

split-complementary

#183C65 #651B18 #636518

monochromatic

#060F19 #0C1F34 #183C65 #245996 #3077C8

Accessibility & contrast

On white

11.21

#183C65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#183C65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C65

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C65	#FFFFFF	#000000	##FFFFFF
##183C65	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293F67

Deuteranopia (green-blind)

#1D3864

Tritanopia (blue-blind)

#00464B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183c65;
/* rgb */ color: rgb(24, 60, 101);
/* oklch */ color: oklch(35.3% 0.083 253.7);

Tailwind

colors: {
  custom: {
    50: '#607191',
    500: '#183c65',
    950: '#000000',
  },
}

SCSS

$custom: #183c65;
$custom-light: #607191;
$custom-dark: #000000;

JSON

{
  "hex": "#183c65",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 101
  },
  "hsl": {
    "h": 211.948,
    "s": 61.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.35251,
    "c": 0.08273,
    "h": 253.7
  },
  "luminance": 0.04365
}

Semantic roles & 50–950 ramp

primary

#183C65

secondary

#9B6F3E

accent

#9943E5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05070D

muted

#7A7A7D

Preview Lab

Preview with #183C65

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

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