#210A3B#210A3B

#210A3B is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.5% C 0.089 H 300.4°. Best body text is #FFFFFF at 17.93:1 contrast (WCAG AA passes).

Color values

HEX	#210A3B
RGB	rgb(33, 10, 59)
HSL	hsl(268, 71%, 14%)
HSV	hsv(268, 83%, 23%)
CMYK	cmyk(44.1%, 83.1%, 0%, 76.9%)
CIE-LAB	lab(7.73, 23.81, -26.77)
CIE-LCH	lch(7.73, 35.83, 311.65°)
OKLab	oklab(21.52% 0.0449 -0.0764)
OKLCH	oklch(21.52% 0.089 300.4)
XYZ	xyz(1.5250, 0.8562, 4.2217)
Luminance	0.0086 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210A3B #243B0A

analogous

#0A0C3B #210A3B #390A3B

triadic

#210A3B #3B210A #0A3B21

tetradic

#210A3B #3B0A0C #243B0A #0A3B39

square

#210A3B #3B0A0C #243B0A #0A3B39

split-complementary

#210A3B #3B390A #0C3B0A

monochromatic

#0F041A #0F041A #210A3B #3E136F #5C1CA4

Accessibility & contrast

On white

17.93

#210A3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#210A3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210A3B

17.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210A3B	#FFFFFF	#000000	##FFFFFF
##210A3B	1.00	17.93	1.17	17.93
#FFFFFF	17.93	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00173C

Deuteranopia (green-blind)

#00173A

Tritanopia (blue-blind)

#1B1621

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #210a3b;
/* rgb */ color: rgb(33, 10, 59);
/* oklch */ color: oklch(21.5% 0.089 300.4);

Tailwind

colors: {
  custom: {
    50: '#5f4b71',
    500: '#210a3b',
    950: '#000000',
  },
}

SCSS

$custom: #210a3b;
$custom-light: #5f4b71;
$custom-dark: #000000;

JSON

{
  "hex": "#210a3b",
  "rgb": {
    "r": 33,
    "g": 10,
    "b": 59
  },
  "hsl": {
    "h": 268.163,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.2152,
    "c": 0.0886,
    "h": 300.4
  },
  "luminance": 0.00856
}

Semantic roles & 50–950 ramp

primary

#210A3B

secondary

#537828

accent

#EE3A99

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#050108

muted

#79777B

Preview Lab

Preview with #210A3B

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

Preview Lab → · Contrast checker → · Palette generator →