#18128F#18128F

#18128F is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.7% C 0.188 H 270.2°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#18128F
RGB	rgb(24, 18, 143)
HSL	hsl(243, 78%, 32%)
HSV	hsv(243, 87%, 56%)
CMYK	cmyk(83.2%, 87.4%, 0%, 43.9%)
CIE-LAB	lab(18.41, 45.67, -65.06)
CIE-LCH	lch(18.41, 79.49, 305.06°)
OKLab	oklab(31.69% 0.0007 -0.1882)
OKLCH	oklch(31.69% 0.188 270.2)
XYZ	xyz(5.5492, 2.6093, 26.1925)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18128F #898F12

analogous

#124B8F #18128F #57128F

triadic

#18128F #8F1812 #128F18

tetradic

#18128F #8F124B #898F12 #128F57

square

#18128F #8F124B #898F12 #128F57

split-complementary

#18128F #8F5712 #4B8F12

monochromatic

#060422 #0F0B59 #18128F #2119C5 #3E36E6

Accessibility & contrast

On white

13.80

#18128F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#18128F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18128F

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18128F	#FFFFFF	#000000	##FFFFFF
##18128F	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003392

Deuteranopia (green-blind)

#00268D

Tritanopia (blue-blind)

#003C54

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #18128f;
/* rgb */ color: rgb(24, 18, 143);
/* oklch */ color: oklch(31.7% 0.188 270.2);

Tailwind

colors: {
  custom: {
    50: '#6f55b1',
    500: '#18128f',
    950: '#000000',
  },
}

SCSS

$custom: #18128f;
$custom-light: #6f55b1;
$custom-dark: #000000;

JSON

{
  "hex": "#18128f",
  "rgb": {
    "r": 24,
    "g": 18,
    "b": 143
  },
  "hsl": {
    "h": 242.88,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31687,
    "c": 0.18825,
    "h": 270.2
  },
  "luminance": 0.0261
}

Semantic roles & 50–950 ramp

primary

#18128F

secondary

#BDC33A

accent

#F434EB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #18128F

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

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