#183D6D#183D6D

#183D6D is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 36.1% C 0.093 H 256.2°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#183D6D
RGB	rgb(24, 61, 109)
HSL	hsl(214, 64%, 26%)
HSV	hsv(214, 78%, 43%)
CMYK	cmyk(78%, 44%, 0%, 57.3%)
CIE-LAB	lab(25.67, 5.27, -31.69)
CIE-LCH	lch(25.67, 32.13, 279.43°)
OKLab	oklab(36.06% -0.0223 -0.0906)
OKLCH	oklch(36.06% 0.093 256.2)
XYZ	xyz(4.8047, 4.6353, 15.1065)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D6D #6D4818

analogous

#18676D #183D6D #1D186D

triadic

#183D6D #6D183D #3D6D18

tetradic

#183D6D #6D1867 #6D4818 #186D1D

square

#183D6D #6D1867 #6D4818 #186D1D

split-complementary

#183D6D #6D1D18 #676D18

monochromatic

#060E19 #0D213B #183D6D #23599F #2E75D1

Accessibility & contrast

On white

10.90

#183D6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#183D6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D6D

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D6D	#FFFFFF	#000000	##FFFFFF
##183D6D	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26416F

Deuteranopia (green-blind)

#17396C

Tritanopia (blue-blind)

#00484F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183d6d;
/* rgb */ color: rgb(24, 61, 109);
/* oklch */ color: oklch(36.1% 0.093 256.2);

Tailwind

colors: {
  custom: {
    50: '#627297',
    500: '#183d6d',
    950: '#000000',
  },
}

SCSS

$custom: #183d6d;
$custom-light: #627297;
$custom-dark: #000000;

JSON

{
  "hex": "#183d6d",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 109
  },
  "hsl": {
    "h": 213.882,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36057,
    "c": 0.09328,
    "h": 256.2
  },
  "luminance": 0.04636
}

Semantic roles & 50–950 ramp

primary

#183D6D

secondary

#A3773E

accent

#9F41E7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #183D6D

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

Preview Lab → · Contrast checker → · Palette generator →