#25191B
Closest named color: Jet (#212529). oklch(22.9% 0.02 7.6), rgb(37, 25, 27).
Aa
White text reads best on this color (17.02:1).
About this color
#25191B is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.020. 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 17.02:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.23:1 |
| White text | 17.02:1 |
Values
| HEX | #25191B |
| RGB | rgb(37, 25, 27) |
| HSL | hsl(350, 19%, 12%) |
| OKLCH | oklch(22.9% 0.02 7.6) |
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 #25191B | 17.02:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #25191B | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #25191B text on white | 17.02:1 | AAA | Lc 103.9 | Preferred for body text |
| #25191B text on black | 1.23:1 | 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
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EEE8E9
oklch(93.6% 0.007 5.6)
-
Step 200
200
#E1D6D7
oklch(88.5% 0.012 11)
-
Step 300
300
#CFBBBE
oklch(81% 0.023 7.3)
-
Step 400
400
#B6979C
oklch(70.6% 0.038 7.2)
-
Step 500
500
#A47E84
oklch(63.2% 0.048 8)
-
Step 600
600
#8E676E
oklch(55.6% 0.051 6.9)
-
Step 700
700
#79565C
oklch(49.2% 0.047 7.6)
-
Step 800
800
#62464B
oklch(42.6% 0.039 7)
-
Step 900
900
#503B3E
oklch(37.7% 0.03 9.1)
-
Step 950
950 (this color)
#25191B
oklch(22.9% 0.02 7.6)
#25191B 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 | 0.021 |
| Deuteranopia (no green cones) | #1E1D1B | 0.019 |
| Tritanopia (no blue cones) | #27181A | 0.005 |
| Achromatopsia (no color) | #1C1C1C | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25191B
#25191B
oklch(22.9% 0.02 7.6)
- #12201E
#12201E
oklch(23% 0.02 184.7)
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 #25191B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.042
- Dark #1B2431 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.049
- Dark Brown #341C02 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.065
- Chocolate Brown #411900 ΔE 0.071
- Dark Maroon #3C0008 ΔE 0.072
- Deep Brown #410200 ΔE 0.077
Use #25191B 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.