#18335E#18335E

#18335E is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.5% C 0.083 H 259.3°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#18335E
RGB	rgb(24, 51, 94)
HSL	hsl(217, 59%, 23%)
HSV	hsv(217, 74%, 37%)
CMYK	cmyk(74.5%, 45.7%, 0%, 63.1%)
CIE-LAB	lab(21.47, 6.11, -28.69)
CIE-LCH	lch(21.47, 29.33, 282.02°)
OKLab	oklab(32.48% -0.0154 -0.0819)
OKLCH	oklch(32.48% 0.083 259.3)
XYZ	xyz(3.5802, 3.3696, 11.0492)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18335E #5E4318

analogous

#18565E #18335E #20185E

triadic

#18335E #5E1833 #335E18

tetradic

#18335E #5E1856 #5E4318 #185E20

square

#18335E #5E1856 #5E4318 #185E20

split-complementary

#18335E #5E2018 #565E18

monochromatic

#060D18 #0C192D #18335E #244D8F #3168C0

Accessibility & contrast

On white

12.54

#18335E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#18335E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18335E

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18335E	#FFFFFF	#000000	##FFFFFF
##18335E	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3760

Deuteranopia (green-blind)

#13305D

Tritanopia (blue-blind)

#003D43

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18335e;
/* rgb */ color: rgb(24, 51, 94);
/* oklch */ color: oklch(32.5% 0.083 259.3);

Tailwind

colors: {
  custom: {
    50: '#5f6a8c',
    500: '#18335e',
    950: '#000000',
  },
}

SCSS

$custom: #18335e;
$custom-light: #5f6a8c;
$custom-dark: #000000;

JSON

{
  "hex": "#18335e",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 94
  },
  "hsl": {
    "h": 216.857,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.32483,
    "c": 0.08339,
    "h": 259.3
  },
  "luminance": 0.0337
}

Semantic roles & 50–950 ramp

primary

#18335E

secondary

#94733D

accent

#A645E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #18335E

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

Preview Lab → · Contrast checker → · Palette generator →