#210318
Closest named color: Very Dark Brown (#1D0200). oklch(17.4% 0.063 341.5), rgb(33, 3, 24).
Aa
White text reads best on this color (19.25:1).
About this color
#210318 is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.063 and its hue 341°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.057 away. White text reads best on it, at 19.25:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.09:1 |
| White text | 19.25:1 |
Values
| HEX | #210318 |
| RGB | rgb(33, 3, 24) |
| HSL | hsl(318, 83%, 7%) |
| OKLCH | oklch(17.4% 0.063 341.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #210318 | 19.25:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #210318 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #210318 text on white | 19.25:1 | AAA | Lc 105.2 | Preferred for body text |
| #210318 text on black | 1.09:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#FBF3F7
oklch(97.1% 0.01 345.4)
-
Step 100
100
#F5E5EE
oklch(93.7% 0.021 342.5)
-
Step 200
200
#EDCFE1
oklch(88.5% 0.041 341.3)
-
Step 300
300
#E3AECF
oklch(80.9% 0.075 341.1)
-
Step 400
400
#D382B6
oklch(70.8% 0.119 341.6)
-
Step 500
500
#C560A4
oklch(63.2% 0.152 341.4)
-
Step 600
600
#B0438F
oklch(55.6% 0.166 341.4)
-
Step 700
700
#973479
oklch(49.1% 0.154 341.7)
-
Step 800
800
#7B2C63
oklch(42.7% 0.128 341.4)
-
Step 900
900
#632951
oklch(37.7% 0.099 341)
-
Step 950
950 (this color)
#210318
oklch(17.4% 0.063 341.5)
#210318 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #050B19 | 0.069 |
| Deuteranopia (no green cones) | #0E1017 | 0.059 |
| Tritanopia (no blue cones) | #24030B | 0.029 |
| Achromatopsia (no color) | #0E0E0E | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210318
#210318
oklch(17.4% 0.063 341.5)
- #00150B
#00150B
oklch(17.3% 0.038 162.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #210318, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.060
- Midnight Purple #280137 ΔE 0.064
- Almost Black #070D0D ΔE 0.075
- Dark Maroon #3C0008 ΔE 0.077
- Eggplant #380835 ΔE 0.080
- Rich Navy #001219 ΔE 0.083
- Dark Plum #3F012C ΔE 0.083
Use #210318 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.