#21191F
Closest named color: Rich Black (#0D1B2A). oklch(22.6% 0.017 335.1), rgb(33, 25, 31).
Aa
White text reads best on this color (17.16:1).
About this color
#21191F is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.038 away. White text reads best on it, at 17.16:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.16:1 |
Values
| HEX | #21191F |
| RGB | rgb(33, 25, 31) |
| HSL | hsl(315, 14%, 11%) |
| OKLCH | oklch(22.6% 0.017 335.1) |
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 #21191F | 17.16:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #21191F | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #21191F text on white | 17.16:1 | AAA | Lc 104.0 | Preferred for body text |
| #21191F 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
#DED6DC
oklch(88.4% 0.012 334.1)
-
Step 300
300
#C9BCC6
oklch(80.9% 0.02 333.5)
-
Step 400
400
#AE99A8
oklch(70.6% 0.032 336.1)
-
Step 500
500
#9A8193
oklch(63.2% 0.04 336.2)
-
Step 600
600
#846A7E
oklch(55.6% 0.044 334.4)
-
Step 700
700
#70586A
oklch(49.1% 0.041 335.2)
-
Step 800
800
#5B4856
oklch(42.6% 0.034 335.7)
-
Step 900
900
#4B3C47
oklch(37.6% 0.027 335.7)
-
Step 950
950 (this color)
#21191F
oklch(22.6% 0.017 335.1)
#21191F 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) | #191B1F | 0.017 |
| Deuteranopia (no green cones) | #1B1C1F | 0.015 |
| Tritanopia (no blue cones) | #22191B | 0.008 |
| Achromatopsia (no color) | #1B1B1B | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21191F
#21191F
oklch(22.6% 0.017 335.1)
- #161E18
#161E18
oklch(22.5% 0.016 152.6)
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 #21191F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.038
- Jet #212529 ΔE 0.041
- Dark #1B2431 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.059
- Dark Brown #341C02 ΔE 0.063
- Rich Navy #001219 ΔE 0.070
- Almost Black #070D0D ΔE 0.077
- Dark Maroon #3C0008 ΔE 0.080
Use #21191F 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.