#211217
Closest named color: Rich Black (#0D1B2A). oklch(20.5% 0.026 358.1), rgb(33, 18, 23).
Aa
White text reads best on this color (18.04:1).
About this color
#211217 is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.052 away. White text reads best on it, at 18.04:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.04:1 |
Values
| HEX | #211217 |
| RGB | rgb(33, 18, 23) |
| HSL | hsl(340, 29%, 10%) |
| OKLCH | oklch(20.5% 0.026 358.1) |
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 #211217 | 18.04:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #211217 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #211217 text on white | 18.04:1 | AAA | Lc 104.7 | Preferred for body text |
| #211217 text on black | 1.16:1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE7EA
oklch(93.5% 0.01 352.4)
-
Step 200
200
#E3D5D9
oklch(88.5% 0.016 358.1)
-
Step 300
300
#D3B9C0
oklch(81% 0.031 359.7)
-
Step 400
400
#BC94A0
oklch(70.7% 0.051 358.6)
-
Step 500
500
#AA7A89
oklch(63.2% 0.063 358.6)
-
Step 600
600
#956273
oklch(55.6% 0.07 358)
-
Step 700
700
#7F5160
oklch(49.1% 0.065 358.6)
-
Step 800
800
#67434F
oklch(42.8% 0.053 357.9)
-
Step 900
900
#543841
oklch(37.6% 0.042 358.4)
-
Step 950
950 (this color)
#211217
oklch(20.5% 0.026 358.1)
#211217 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) | #141517 | 0.029 |
| Deuteranopia (no green cones) | #171717 | 0.026 |
| Tritanopia (no blue cones) | #231114 | 0.007 |
| Achromatopsia (no color) | #161616 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #211217
#211217
oklch(20.5% 0.026 358.1)
- #081B17
#081B17
oklch(20.4% 0.026 178.1)
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 #211217, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.052
- Almost Black #070D0D ΔE 0.064
- Rich Navy #001219 ΔE 0.064
- Very Dark Brown #1D0200 ΔE 0.065
- Jet #212529 ΔE 0.065
- Dark #1B2431 ΔE 0.067
- Dark Brown #341C02 ΔE 0.070
- Dark Maroon #3C0008 ΔE 0.070
Use #211217 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.