#183E6F#183E6F

#183E6F is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.4% C 0.095 H 256.1°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#183E6F
RGB	rgb(24, 62, 111)
HSL	hsl(214, 64%, 26%)
HSV	hsv(214, 78%, 44%)
CMYK	cmyk(78.4%, 44.1%, 0%, 56.5%)
CIE-LAB	lab(26.12, 5.40, -32.25)
CIE-LCH	lch(26.12, 32.70, 279.50°)
OKLab	oklab(36.45% -0.0228 -0.0922)
OKLCH	oklch(36.45% 0.095 256.1)
XYZ	xyz(4.9675, 4.7866, 15.6979)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E6F #6F4918

analogous

#186A6F #183E6F #1E186F

triadic

#183E6F #6F183E #3E6F18

tetradic

#183E6F #6F186A #6F4918 #186F1E

square

#183E6F #6F186A #6F4918 #186F1E

split-complementary

#183E6F #6F1E18 #6A6F18

monochromatic

#050E19 #0D223D #183E6F #235AA1 #2F76D2

Accessibility & contrast

On white

10.73

#183E6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#183E6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E6F

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E6F	#FFFFFF	#000000	##FFFFFF
##183E6F	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264271

Deuteranopia (green-blind)

#173A6E

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #183e6f;
/* rgb */ color: rgb(24, 62, 111);
/* oklch */ color: oklch(36.4% 0.095 256.1);

Tailwind

colors: {
  custom: {
    50: '#627299',
    500: '#183e6f',
    950: '#000000',
  },
}

SCSS

$custom: #183e6f;
$custom-light: #627299;
$custom-dark: #000000;

JSON

{
  "hex": "#183e6f",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 111
  },
  "hsl": {
    "h": 213.793,
    "s": 64.444,
    "l": 26.471
  },
  "oklch": {
    "l": 0.36447,
    "c": 0.09499,
    "h": 256.1
  },
  "luminance": 0.04787
}

Semantic roles & 50–950 ramp

primary

#183E6F

secondary

#A5783E

accent

#9E40E7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #183E6F

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

Preview Lab → · Contrast checker → · Palette generator →