#18358F#18358F

#18358F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.153 H 265.5°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#18358F
RGB	rgb(24, 53, 143)
HSL	hsl(225, 71%, 33%)
HSV	hsv(225, 83%, 56%)
CMYK	cmyk(83.2%, 62.9%, 0%, 43.9%)
CIE-LAB	lab(25.93, 24.84, -52.65)
CIE-LCH	lch(25.93, 58.21, 295.26°)
OKLab	oklab(37.08% -0.012 -0.1523)
OKLCH	oklch(37.08% 0.153 265.5)
XYZ	xyz(6.6060, 4.7228, 26.5447)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18358F #8F7218

analogous

#18708F #18358F #36188F

triadic

#18358F #8F1835 #358F18

tetradic

#18358F #8F1870 #8F7218 #188F36

square

#18358F #8F1870 #8F7218 #188F36

split-complementary

#18358F #8F3618 #708F18

monochromatic

#060E26 #0F225B #18358F #2148C3 #4268DF

Accessibility & contrast

On white

10.80

#18358F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#18358F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18358F

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18358F	#FFFFFF	#000000	##FFFFFF
##18358F	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004392

Deuteranopia (green-blind)

#00388D

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #18358f;
/* rgb */ color: rgb(24, 53, 143);
/* oklch */ color: oklch(37.1% 0.153 265.5);

Tailwind

colors: {
  custom: {
    50: '#6b6bb1',
    500: '#18358f',
    950: '#000000',
  },
}

SCSS

$custom: #18358f;
$custom-light: #6b6bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#18358f",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 143
  },
  "hsl": {
    "h": 225.378,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37083,
    "c": 0.1528,
    "h": 265.5
  },
  "luminance": 0.04724
}

Semantic roles & 50–950 ramp

primary

#18358F

secondary

#C0A243

accent

#C23AEE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #18358F

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

Preview Lab → · Contrast checker → · Palette generator →