#183C67#183C67

#183C67 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.086 H 254.6°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#183C67
RGB	rgb(24, 60, 103)
HSL	hsl(213, 62%, 25%)
HSV	hsv(213, 77%, 40%)
CMYK	cmyk(76.7%, 41.7%, 0%, 59.6%)
CIE-LAB	lab(24.97, 3.49, -28.96)
CIE-LCH	lch(24.97, 29.17, 276.87°)
OKLab	oklab(35.39% -0.0227 -0.0826)
OKLCH	oklch(35.39% 0.086 254.6)
XYZ	xyz(4.4398, 4.4047, 13.4455)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C67 #674318

analogous

#186467 #183C67 #1B1867

triadic

#183C67 #67183C #3C6718

tetradic

#183C67 #671864 #674318 #18671B

square

#183C67 #671864 #674318 #18671B

split-complementary

#183C67 #671B18 #646718

monochromatic

#060E19 #0C1F35 #183C67 #245999 #2F76CA

Accessibility & contrast

On white

11.16

#183C67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#183C67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C67

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C67	#FFFFFF	#000000	##FFFFFF
##183C67	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283F69

Deuteranopia (green-blind)

#1C3866

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183c67;
/* rgb */ color: rgb(24, 60, 103);
/* oklch */ color: oklch(35.4% 0.086 254.6);

Tailwind

colors: {
  custom: {
    50: '#617192',
    500: '#183c67',
    950: '#000000',
  },
}

SCSS

$custom: #183c67;
$custom-light: #617192;
$custom-dark: #000000;

JSON

{
  "hex": "#183c67",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 103
  },
  "hsl": {
    "h": 212.658,
    "s": 62.205,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35387,
    "c": 0.08567,
    "h": 254.6
  },
  "luminance": 0.04405
}

Semantic roles & 50–950 ramp

primary

#183C67

secondary

#9D723E

accent

#9B43E5

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #183C67

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

Preview Lab → · Contrast checker → · Palette generator →