#28191B
Closest named color: Jet (#212529). oklch(23.4% 0.024 10.3), rgb(40, 25, 27).
Aa
White text reads best on this color (16.86:1).
About this color
#28191B is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.042 away. White text reads best on it, at 16.86:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.24:1 |
| White text | 16.86:1 |
Values
| HEX | #28191B |
| RGB | rgb(40, 25, 27) |
| HSL | hsl(352, 23%, 13%) |
| OKLCH | oklch(23.4% 0.024 10.3) |
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 #28191B | 16.86:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #28191B | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #28191B text on white | 16.86:1 | AAA | Lc 103.7 | Preferred for body text |
| #28191B text on black | 1.24:1 | 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
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E3D5D6
oklch(88.5% 0.016 12.5)
-
Step 300
300
#D2B9BC
oklch(80.8% 0.029 9.5)
-
Step 400
400
#BB959A
oklch(70.6% 0.046 9.5)
-
Step 500
500
#AA7B81
oklch(63.1% 0.059 10.4)
-
Step 600
600
#95646A
oklch(55.7% 0.064 11.3)
-
Step 700
700
#7F5359
oklch(49.3% 0.059 10.5)
-
Step 800
800
#674449
oklch(42.8% 0.049 9.9)
-
Step 900
900
#54393D
oklch(37.7% 0.039 9.3)
-
Step 950
950 (this color)
#28191B
oklch(23.4% 0.024 10.3)
#28191B 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) | #1B1B1B | 0.027 |
| Deuteranopia (no green cones) | #1F1E1B | 0.024 |
| Tritanopia (no blue cones) | #2B181A | 0.007 |
| Achromatopsia (no color) | #1D1D1D | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28191B
#28191B
oklch(23.4% 0.024 10.3)
- #0F2120
#0F2120
oklch(23.2% 0.024 191)
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 #28191B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.042
- Dark Brown #341C02 ΔE 0.049
- Dark #1B2431 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.054
- Oxford Blue #1B263B ΔE 0.065
- Chocolate Brown #411900 ΔE 0.066
- Dark Maroon #3C0008 ΔE 0.067
- Deep Brown #410200 ΔE 0.072
Use #28191B 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.