#21191E
Closest named color: Rich Black (#0D1B2A). oklch(22.5% 0.016 340.5), rgb(33, 25, 30).
Aa
White text reads best on this color (17.17:1).
About this color
#21191E is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.039 away. White text reads best on it, at 17.17:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.17:1 |
Values
| HEX | #21191E |
| RGB | rgb(33, 25, 30) |
| HSL | hsl(323, 14%, 11%) |
| OKLCH | oklch(22.5% 0.016 340.5) |
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 #21191E | 17.17:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #21191E | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #21191E text on white | 17.17:1 | AAA | Lc 104.1 | Preferred for body text |
| #21191E text on black | 1.22:1 | 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
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#ECE8EB
oklch(93.5% 0.006 334)
-
Step 200
200
#DED7DB
oklch(88.6% 0.009 341.8)
-
Step 300
300
#C9BCC4
oklch(80.8% 0.018 340)
-
Step 400
400
#AE9AA6
oklch(70.7% 0.029 341.1)
-
Step 500
500
#9A8190
oklch(63.1% 0.037 341.5)
-
Step 600
600
#856A7B
oklch(55.6% 0.042 340.4)
-
Step 700
700
#705867
oklch(49% 0.039 340.7)
-
Step 800
800
#5B4854
oklch(42.6% 0.032 340.3)
-
Step 900
900
#4B3D46
oklch(37.8% 0.024 339.6)
-
Step 950
950 (this color)
#21191E
oklch(22.5% 0.016 340.5)
#21191E 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) | #191B1E | 0.017 |
| Deuteranopia (no green cones) | #1B1C1E | 0.015 |
| Tritanopia (no blue cones) | #22191B | 0.006 |
| Achromatopsia (no color) | #1B1B1B | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21191E
#21191E
oklch(22.5% 0.016 340.5)
- #151E19
#151E19
oklch(22.4% 0.016 160.4)
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 #21191E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.039
- Jet #212529 ΔE 0.041
- Dark #1B2431 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.061
- Dark Brown #341C02 ΔE 0.062
- Rich Navy #001219 ΔE 0.070
- Almost Black #070D0D ΔE 0.077
- Dark Maroon #3C0008 ΔE 0.079
Use #21191E 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.