#12033B#12033B

#12033B is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.4% C 0.099 H 284.8°. Best body text is #FFFFFF at 19.06:1 contrast (WCAG AA passes).

Color values

HEX	#12033B
RGB	rgb(18, 3, 59)
HSL	hsl(256, 90%, 12%)
HSV	hsv(256, 95%, 23%)
CMYK	cmyk(69.5%, 94.9%, 0%, 76.9%)
CIE-LAB	lab(4.60, 23.30, -31.94)
CIE-LCH	lch(4.60, 39.54, 306.11°)
OKLab	oklab(18.42% 0.0253 -0.0952)
OKLCH	oklch(18.42% 0.099 284.8)
XYZ	xyz(1.0712, 0.5094, 4.1787)
Luminance	0.0051 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 3.61

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12033B #2C3B03

analogous

#03103B #12033B #2E033B

triadic

#12033B #3B1203 #033B12

tetradic

#12033B #3B0310 #2C3B03 #033B2E

square

#12033B #3B0310 #2C3B03 #033B2E

split-complementary

#12033B #3B2E03 #103B03

monochromatic

#09011D #09011D #12033B #240675 #3609AF

Accessibility & contrast

On white

19.06

#12033B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#12033B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12033B

19.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12033B	#FFFFFF	#000000	##FFFFFF
##12033B	1.00	19.06	1.10	19.06
#FFFFFF	19.06	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00113D

Deuteranopia (green-blind)

#000E3A

Tritanopia (blue-blind)

#00141F

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #12033b;
/* rgb */ color: rgb(18, 3, 59);
/* oklch */ color: oklch(18.4% 0.099 284.8);

Tailwind

colors: {
  custom: {
    50: '#564772',
    500: '#12033b',
    950: '#000000',
  },
}

SCSS

$custom: #12033b;
$custom-light: #564772;
$custom-dark: #000000;

JSON

{
  "hex": "#12033b",
  "rgb": {
    "r": 18,
    "g": 3,
    "b": 59
  },
  "hsl": {
    "h": 256.071,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.18415,
    "c": 0.09853,
    "h": 284.8
  },
  "luminance": 0.00509
}

Semantic roles & 50–950 ramp

primary

#12033B

secondary

#637E1C

accent

#FF29C6

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#030008

muted

#78777B

Preview Lab

Preview with #12033B

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

Preview Lab → · Contrast checker → · Palette generator →