#18335D#18335D

#18335D is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.4% C 0.082 H 259.0°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#18335D
RGB	rgb(24, 51, 93)
HSL	hsl(217, 59%, 23%)
HSV	hsv(217, 74%, 36%)
CMYK	cmyk(74.2%, 45.2%, 0%, 63.5%)
CIE-LAB	lab(21.40, 5.70, -28.14)
CIE-LCH	lch(21.40, 28.71, 281.45°)
OKLab	oklab(32.41% -0.0156 -0.0803)
OKLCH	oklch(32.41% 0.082 259)
XYZ	xyz(3.5356, 3.3518, 10.8144)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18335D #5D4218

analogous

#18555D #18335D #20185D

triadic

#18335D #5D1833 #335D18

tetradic

#18335D #5D1855 #5D4218 #185D20

square

#18335D #5D1855 #5D4218 #185D20

split-complementary

#18335D #5D2018 #555D18

monochromatic

#060D18 #0B182C #18335D #254E8E #3168BE

Accessibility & contrast

On white

12.57

#18335D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#18335D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18335D

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18335D	#FFFFFF	#000000	##FFFFFF
##18335D	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F375F

Deuteranopia (green-blind)

#14305C

Tritanopia (blue-blind)

#003D43

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18335d;
/* rgb */ color: rgb(24, 51, 93);
/* oklch */ color: oklch(32.4% 0.082 259.0);

Tailwind

colors: {
  custom: {
    50: '#5e6a8b',
    500: '#18335d',
    950: '#000000',
  },
}

SCSS

$custom: #18335d;
$custom-light: #5e6a8b;
$custom-dark: #000000;

JSON

{
  "hex": "#18335d",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 93
  },
  "hsl": {
    "h": 216.522,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.3241,
    "c": 0.08184,
    "h": 259
  },
  "luminance": 0.03352
}

Semantic roles & 50–950 ramp

primary

#18335D

secondary

#93723D

accent

#A546E2

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #18335D

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

Preview Lab → · Contrast checker → · Palette generator →