#183C6E#183C6E

#183C6E is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.9% C 0.096 H 257.3°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#183C6E
RGB	rgb(24, 60, 110)
HSL	hsl(215, 64%, 26%)
HSV	hsv(215, 78%, 43%)
CMYK	cmyk(78.2%, 45.5%, 0%, 56.9%)
CIE-LAB	lab(25.42, 6.38, -32.74)
CIE-LCH	lch(25.42, 33.35, 281.02°)
OKLab	oklab(35.88% -0.021 -0.0937)
OKLCH	oklch(35.88% 0.096 257.3)
XYZ	xyz(4.8060, 4.5512, 15.3740)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C6E #6E4A18

analogous

#18676E #183C6E #1F186E

triadic

#183C6E #6E183C #3C6E18

tetradic

#183C6E #6E1867 #6E4A18 #186E1F

square

#183C6E #6E1867 #6E4A18 #186E1F

split-complementary

#183C6E #6E1F18 #676E18

monochromatic

#050E19 #0D213C #183C6E #2357A0 #2F73D2

Accessibility & contrast

On white

10.99

#183C6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#183C6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C6E

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C6E	#FFFFFF	#000000	##FFFFFF
##183C6E	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234070

Deuteranopia (green-blind)

#13396D

Tritanopia (blue-blind)

#00484F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183c6e;
/* rgb */ color: rgb(24, 60, 110);
/* oklch */ color: oklch(35.9% 0.096 257.3);

Tailwind

colors: {
  custom: {
    50: '#627198',
    500: '#183c6e',
    950: '#000000',
  },
}

SCSS

$custom: #183c6e;
$custom-light: #627198;
$custom-dark: #000000;

JSON

{
  "hex": "#183c6e",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 110
  },
  "hsl": {
    "h": 214.884,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.35882,
    "c": 0.09602,
    "h": 257.3
  },
  "luminance": 0.04552
}

Semantic roles & 50–950 ramp

primary

#183C6E

secondary

#A4793E

accent

#A141E7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #183C6E

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

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