#212121
Closest named color: Jet (#212529). oklch(24.8% 0 0), rgb(33, 33, 33).
Aa
White text reads best on this color (16.10:1).
About this color
#212121 is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.000. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.017 away. White text reads best on it, at 16.10:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.000) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.30:1 |
| White text | 16.10:1 |
Values
| HEX | #212121 |
| RGB | rgb(33, 33, 33) |
| HSL | hsl(0, 0%, 13%) |
| OKLCH | oklch(24.8% 0 0) |
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 #212121 | 16.10:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #212121 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #212121 text on white | 16.10:1 | AAA | Lc 103.1 | Preferred for body text |
| #212121 text on black | 1.30:1 | 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
#F5F5F5
oklch(97% 0 0)
-
Step 100
100
#EAEAEA
oklch(93.7% 0 0)
-
Step 200
200
#D9D9D9
oklch(88.5% 0 0)
-
Step 300
300
#C0C0C0
oklch(80.8% 0 0)
-
Step 400
400
#A0A0A0
oklch(70.6% 0 0)
-
Step 500
500
#898989
oklch(63% 0 0)
-
Step 600
600
#737373
oklch(55.6% 0 0)
-
Step 700
700
#616161
oklch(49.3% 0 0)
-
Step 800
800
#4F4F4F
oklch(42.8% 0 0)
-
Step 900
900
#414141
oklch(37.5% 0 0)
-
Step 950
950 (this color)
#212121
oklch(24.8% 0 0)
#212121 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) | #212121 | 0.000 |
| Deuteranopia (no green cones) | #212121 | 0.000 |
| Tritanopia (no blue cones) | #212121 | 0.000 |
| Achromatopsia (no color) | #212121 | 0.000 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes and gradients that use #212121
These curated palettes and gradients contain exactly #212121. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.017
- Dark #1B2431 ΔE 0.030
- Rich Black #0D1B2A ΔE 0.047
- Oxford Blue #1B263B ΔE 0.047
- Dark Brown #341C02 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.069
- Gunmetal #293241 ΔE 0.074
- Chocolate Brown #411900 ΔE 0.075
Use #212121 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.