#180A3E#180A3E

#180A3E is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 20.7% C 0.092 H 287.8°. Best body text is #FFFFFF at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#180A3E
RGB	rgb(24, 10, 62)
HSL	hsl(256, 72%, 14%)
HSV	hsv(256, 84%, 24%)
CMYK	cmyk(61.3%, 83.9%, 0%, 75.7%)
CIE-LAB	lab(6.86, 22.71, -30.41)
CIE-LCH	lch(6.86, 37.95, 306.75°)
OKLab	oklab(20.67% 0.0281 -0.0877)
OKLCH	oklch(20.67% 0.092 287.8)
XYZ	xyz(1.3545, 0.7590, 4.6316)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 4.45

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180A3E #303E0A

analogous

#0A163E #180A3E #320A3E

triadic

#180A3E #3E180A #0A3E18

tetradic

#180A3E #3E0A16 #303E0A #0A3E32

square

#180A3E #3E0A16 #303E0A #0A3E32

split-complementary

#180A3E #3E320A #163E0A

monochromatic

#0A041A #0A041A #180A3E #2C1373 #411BA7

Accessibility & contrast

On white

18.23

#180A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#180A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180A3E

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180A3E	#FFFFFF	#000000	##FFFFFF
##180A3E	1.00	18.23	1.15	18.23
#FFFFFF	18.23	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001640

Deuteranopia (green-blind)

#00143D

Tritanopia (blue-blind)

#091823

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #180a3e;
/* rgb */ color: rgb(24, 10, 62);
/* oklch */ color: oklch(20.7% 0.092 287.8);

Tailwind

colors: {
  custom: {
    50: '#5a4a74',
    500: '#180a3e',
    950: '#000000',
  },
}

SCSS

$custom: #180a3e;
$custom-light: #5a4a74;
$custom-dark: #000000;

JSON

{
  "hex": "#180a3e",
  "rgb": {
    "r": 24,
    "g": 10,
    "b": 62
  },
  "hsl": {
    "h": 256.154,
    "s": 72.222,
    "l": 14.118
  },
  "oklch": {
    "l": 0.20671,
    "c": 0.09213,
    "h": 287.8
  },
  "luminance": 0.00759
}

Semantic roles & 50–950 ramp

primary

#180A3E

secondary

#657B28

accent

#EF39BE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #180A3E

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

Preview Lab → · Contrast checker → · Palette generator →