#18357F#18357F

#18357F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.6% C 0.130 H 264.4°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#18357F
RGB	rgb(24, 53, 127)
HSL	hsl(223, 68%, 30%)
HSV	hsv(223, 81%, 50%)
CMYK	cmyk(81.1%, 58.3%, 0%, 50.2%)
CIE-LAB	lab(24.55, 18.36, -44.92)
CIE-LCH	lch(24.55, 48.53, 292.23°)
OKLab	oklab(35.62% -0.0126 -0.1296)
OKLCH	oklch(35.62% 0.13 264.4)
XYZ	xyz(5.4792, 4.2721, 20.6104)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18357F #7F6218

analogous

#18697F #18357F #2F187F

triadic

#18357F #7F1835 #357F18

tetradic

#18357F #7F1869 #7F6218 #187F2F

square

#18357F #7F1869 #7F6218 #187F2F

split-complementary

#18357F #7F2F18 #697F18

monochromatic

#050B1A #0E204C #18357F #224AB2 #3865D9

Accessibility & contrast

On white

11.32

#18357F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#18357F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18357F

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18357F	#FFFFFF	#000000	##FFFFFF
##18357F	1.00	11.32	1.85	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F82

Deuteranopia (green-blind)

#00367E

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #18357f;
/* rgb */ color: rgb(24, 53, 127);
/* oklch */ color: oklch(35.6% 0.130 264.4);

Tailwind

colors: {
  custom: {
    50: '#676ba5',
    500: '#18357f',
    950: '#000000',
  },
}

SCSS

$custom: #18357f;
$custom-light: #676ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#18357f",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 127
  },
  "hsl": {
    "h": 223.107,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.35623,
    "c": 0.13026,
    "h": 264.4
  },
  "luminance": 0.04273
}

Semantic roles & 50–950 ramp

primary

#18357F

secondary

#B3933F

accent

#BA3DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18357F

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

Preview Lab → · Contrast checker → · Palette generator →