#18355E#18355E

#18355E is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.0% C 0.081 H 257.4°. Best body text is #FFFFFF at 12.28:1 contrast (WCAG AA passes).

Color values

HEX	#18355E
RGB	rgb(24, 53, 94)
HSL	hsl(215, 59%, 23%)
HSV	hsv(215, 74%, 37%)
CMYK	cmyk(74.5%, 43.6%, 0%, 63.1%)
CIE-LAB	lab(22.12, 4.69, -27.65)
CIE-LCH	lch(22.12, 28.04, 279.62°)
OKLab	oklab(32.99% -0.0176 -0.0789)
OKLCH	oklch(32.99% 0.081 257.4)
XYZ	xyz(3.6694, 3.5482, 11.0790)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18355E #5E4118

analogous

#18585E #18355E #1E185E

triadic

#18355E #5E1835 #355E18

tetradic

#18355E #5E1858 #5E4118 #185E1E

square

#18355E #5E1858 #5E4118 #185E1E

split-complementary

#18355E #5E1E18 #585E18

monochromatic

#060E18 #0C1A2D #18355E #24508F #316CC0

Accessibility & contrast

On white

12.28

#18355E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#18355E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18355E

12.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18355E	#FFFFFF	#000000	##FFFFFF
##18355E	1.00	12.28	1.71	12.28
#FFFFFF	12.28	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223860

Deuteranopia (green-blind)

#17325D

Tritanopia (blue-blind)

#003F45

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18355e;
/* rgb */ color: rgb(24, 53, 94);
/* oklch */ color: oklch(33.0% 0.081 257.4);

Tailwind

colors: {
  custom: {
    50: '#5f6b8c',
    500: '#18355e',
    950: '#000000',
  },
}

SCSS

$custom: #18355e;
$custom-light: #5f6b8c;
$custom-dark: #000000;

JSON

{
  "hex": "#18355e",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 94
  },
  "hsl": {
    "h": 215.143,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.32987,
    "c": 0.08081,
    "h": 257.4
  },
  "luminance": 0.03549
}

Semantic roles & 50–950 ramp

primary

#18355E

secondary

#94703D

accent

#A145E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #18355E

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

Preview Lab → · Contrast checker → · Palette generator →