#18128E#18128E

#18128E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.187 H 270.3°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#18128E
RGB	rgb(24, 18, 142)
HSL	hsl(243, 78%, 31%)
HSV	hsv(243, 87%, 56%)
CMYK	cmyk(83.1%, 87.3%, 0%, 44.3%)
CIE-LAB	lab(18.27, 45.36, -64.66)
CIE-LCH	lch(18.27, 78.98, 305.05°)
OKLab	oklab(31.56% 0.0009 -0.1871)
OKLCH	oklch(31.56% 0.187 270.3)
XYZ	xyz(5.4738, 2.5792, 25.7953)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18128E #888E12

analogous

#124A8E #18128E #56128E

triadic

#18128E #8E1812 #128E18

tetradic

#18128E #8E124A #888E12 #128E56

square

#18128E #8E124A #888E12 #128E56

split-complementary

#18128E #8E5612 #4A8E12

monochromatic

#060421 #0F0B58 #18128E #2119C4 #3E35E5

Accessibility & contrast

On white

13.85

#18128E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#18128E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18128E

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18128E	#FFFFFF	#000000	##FFFFFF
##18128E	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003391

Deuteranopia (green-blind)

#00268C

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #18128e;
/* rgb */ color: rgb(24, 18, 142);
/* oklch */ color: oklch(31.6% 0.187 270.3);

Tailwind

colors: {
  custom: {
    50: '#6e55b0',
    500: '#18128e',
    950: '#000000',
  },
}

SCSS

$custom: #18128e;
$custom-light: #6e55b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18128e",
  "rgb": {
    "r": 24,
    "g": 18,
    "b": 142
  },
  "hsl": {
    "h": 242.903,
    "s": 77.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31558,
    "c": 0.18709,
    "h": 270.3
  },
  "luminance": 0.0258
}

Semantic roles & 50–950 ramp

primary

#18128E

secondary

#BCC23A

accent

#F434EB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #18128E

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

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