#18335C#18335C

#18335C is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.3% C 0.080 H 258.6°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#18335C
RGB	rgb(24, 51, 92)
HSL	hsl(216, 59%, 23%)
HSV	hsv(216, 74%, 36%)
CMYK	cmyk(73.9%, 44.6%, 0%, 63.9%)
CIE-LAB	lab(21.34, 5.28, -27.58)
CIE-LCH	lch(21.34, 28.09, 280.85°)
OKLab	oklab(32.34% -0.0159 -0.0787)
OKLCH	oklch(32.34% 0.08 258.6)
XYZ	xyz(3.4916, 3.3342, 10.5827)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18335C #5C4118

analogous

#18555C #18335C #1F185C

triadic

#18335C #5C1833 #335C18

tetradic

#18335C #5C1855 #5C4118 #185C1F

square

#18335C #5C1855 #5C4118 #185C1F

split-complementary

#18335C #5C1F18 #555C18

monochromatic

#060D18 #0B182B #18335C #254E8D #3169BD

Accessibility & contrast

On white

12.60

#18335C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#18335C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18335C

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18335C	#FFFFFF	#000000	##FFFFFF
##18335C	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20375E

Deuteranopia (green-blind)

#15305B

Tritanopia (blue-blind)

#003C43

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18335c;
/* rgb */ color: rgb(24, 51, 92);
/* oklch */ color: oklch(32.3% 0.080 258.6);

Tailwind

colors: {
  custom: {
    50: '#5e6a8a',
    500: '#18335c',
    950: '#000000',
  },
}

SCSS

$custom: #18335c;
$custom-light: #5e6a8a;
$custom-dark: #000000;

JSON

{
  "hex": "#18335c",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 92
  },
  "hsl": {
    "h": 216.176,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32338,
    "c": 0.0803,
    "h": 258.6
  },
  "luminance": 0.03335
}

Semantic roles & 50–950 ramp

primary

#18335C

secondary

#93713D

accent

#A446E2

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #18335C

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

Preview Lab → · Contrast checker → · Palette generator →