#183E65#183E65

#183E65 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.080 H 251.6°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#183E65
RGB	rgb(24, 62, 101)
HSL	hsl(210, 62%, 25%)
HSV	hsv(210, 76%, 40%)
CMYK	cmyk(76.2%, 38.6%, 0%, 60.4%)
CIE-LAB	lab(25.50, 1.30, -26.83)
CIE-LCH	lch(25.50, 26.86, 272.78°)
OKLab	oklab(35.76% -0.0254 -0.0763)
OKLCH	oklch(35.76% 0.08 251.6)
XYZ	xyz(4.4474, 4.5785, 12.9588)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E65 #653F18

analogous

#186565 #183E65 #191865

triadic

#183E65 #65183E #3E6518

tetradic

#183E65 #651865 #653F18 #186519

square

#183E65 #651865 #653F18 #186519

split-complementary

#183E65 #651918 #656518

monochromatic

#060F19 #0C2034 #183E65 #245C96 #307BC8

Accessibility & contrast

On white

10.96

#183E65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#183E65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E65

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E65	#FFFFFF	#000000	##FFFFFF
##183E65	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4067

Deuteranopia (green-blind)

#213964

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183e65;
/* rgb */ color: rgb(24, 62, 101);
/* oklch */ color: oklch(35.8% 0.080 251.6);

Tailwind

colors: {
  custom: {
    50: '#607291',
    500: '#183e65',
    950: '#000000',
  },
}

SCSS

$custom: #183e65;
$custom-light: #607291;
$custom-dark: #000000;

JSON

{
  "hex": "#183e65",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 101
  },
  "hsl": {
    "h": 210.39,
    "s": 61.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.35763,
    "c": 0.08043,
    "h": 251.6
  },
  "luminance": 0.04579
}

Semantic roles & 50–950 ramp

primary

#183E65

secondary

#9B6D3E

accent

#9543E5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #183E65

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

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