#18358B#18358B

#18358B is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.147 H 265.3°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#18358B
RGB	rgb(24, 53, 139)
HSL	hsl(225, 71%, 32%)
HSV	hsv(225, 83%, 55%)
CMYK	cmyk(82.7%, 61.9%, 0%, 45.5%)
CIE-LAB	lab(25.57, 23.24, -50.75)
CIE-LCH	lch(25.57, 55.82, 294.60°)
OKLab	oklab(36.71% -0.0121 -0.1468)
OKLCH	oklch(36.71% 0.147 265.3)
XYZ	xyz(6.3083, 4.6037, 24.9772)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18358B #8B6E18

analogous

#186E8B #18358B #35188B

triadic

#18358B #8B1835 #358B18

tetradic

#18358B #8B186E #8B6E18 #188B35

square

#18358B #8B186E #8B6E18 #188B35

split-complementary

#18358B #8B3518 #6E8B18

monochromatic

#060D23 #0F2157 #18358B #2149BF #3F67DE

Accessibility & contrast

On white

10.93

#18358B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#18358B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18358B

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18358B	#FFFFFF	#000000	##FFFFFF
##18358B	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428E

Deuteranopia (green-blind)

#003789

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #18358b;
/* rgb */ color: rgb(24, 53, 139);
/* oklch */ color: oklch(36.7% 0.147 265.3);

Tailwind

colors: {
  custom: {
    50: '#6a6bae',
    500: '#18358b',
    950: '#000000',
  },
}

SCSS

$custom: #18358b;
$custom-light: #6a6bae;
$custom-dark: #000000;

JSON

{
  "hex": "#18358b",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 139
  },
  "hsl": {
    "h": 224.87,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36709,
    "c": 0.14727,
    "h": 265.3
  },
  "luminance": 0.04604
}

Semantic roles & 50–950 ramp

primary

#18358B

secondary

#BE9F40

accent

#C03AED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #18358B

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

Preview Lab → · Contrast checker → · Palette generator →