#183E68#183E68

#183E68 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 36.0% C 0.085 H 253.2°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#183E68
RGB	rgb(24, 62, 104)
HSL	hsl(212, 63%, 25%)
HSV	hsv(212, 77%, 41%)
CMYK	cmyk(76.9%, 40.4%, 0%, 59.2%)
CIE-LAB	lab(25.68, 2.52, -28.47)
CIE-LCH	lch(25.68, 28.59, 275.07°)
OKLab	oklab(35.96% -0.0246 -0.0811)
OKLCH	oklch(35.96% 0.085 253.2)
XYZ	xyz(4.5971, 4.6384, 13.7470)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E68 #684218

analogous

#186668 #183E68 #1A1868

triadic

#183E68 #68183E #3E6818

tetradic

#183E68 #681866 #684218 #18681A

square

#183E68 #681866 #684218 #18681A

split-complementary

#183E68 #681A18 #666818

monochromatic

#060F19 #0D2036 #183E68 #235C9A #2F79CB

Accessibility & contrast

On white

10.89

#183E68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#183E68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E68

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E68	#FFFFFF	#000000	##FFFFFF
##183E68	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B416A

Deuteranopia (green-blind)

#1E3967

Tritanopia (blue-blind)

#00484E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183e68;
/* rgb */ color: rgb(24, 62, 104);
/* oklch */ color: oklch(36.0% 0.085 253.2);

Tailwind

colors: {
  custom: {
    50: '#617293',
    500: '#183e68',
    950: '#000000',
  },
}

SCSS

$custom: #183e68;
$custom-light: #617293;
$custom-dark: #000000;

JSON

{
  "hex": "#183e68",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 104
  },
  "hsl": {
    "h": 211.5,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35963,
    "c": 0.08477,
    "h": 253.2
  },
  "luminance": 0.04639
}

Semantic roles & 50–950 ramp

primary

#183E68

secondary

#9E703E

accent

#9842E6

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05080D

muted

#7A7B7E

Preview Lab

Preview with #183E68

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

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