#221510
Closest named color: Dark Brown (#341C02). oklch(21.1% 0.024 41.9), rgb(34, 21, 16).
Aa
White text reads best on this color (17.75:1).
About this color
#221510 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.054 away. White text reads best on it, at 17.75:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.18:1 |
| White text | 17.75:1 |
Values
| HEX | #221510 |
| RGB | rgb(34, 21, 16) |
| HSL | hsl(17, 36%, 10%) |
| OKLCH | oklch(21.1% 0.024 41.9) |
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 #221510 | 17.75:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #221510 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #221510 text on white | 17.75:1 | AAA | Lc 104.5 | Preferred for body text |
| #221510 text on black | 1.18:1 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E6
oklch(93.6% 0.008 36.6)
-
Step 200
200
#E3D6D1
oklch(88.5% 0.016 42.4)
-
Step 300
300
#D1BBB3
oklch(80.8% 0.028 41.1)
-
Step 400
400
#BA988B
oklch(70.7% 0.045 42)
-
Step 500
500
#A87E6F
oklch(63% 0.057 40.5)
-
Step 600
600
#936757
oklch(55.5% 0.062 40.8)
-
Step 700
700
#7D5647
oklch(49.1% 0.057 41.9)
-
Step 800
800
#66463A
oklch(42.6% 0.049 41.4)
-
Step 900
900
#533B32
oklch(37.7% 0.037 41.5)
-
Step 950
950 (this color)
#221510
oklch(21.1% 0.024 41.9)
#221510 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) | #181610 | 0.021 |
| Deuteranopia (no green cones) | #1B1910 | 0.020 |
| Tritanopia (no blue cones) | #251314 | 0.013 |
| Achromatopsia (no color) | #181818 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #221510
#221510
oklch(21.1% 0.024 41.9)
- #0C1B20
#0C1B20
oklch(21.1% 0.023 221.4)
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 #221510, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.058
- Jet #212529 ΔE 0.060
- Almost Black #070D0D ΔE 0.067
- Very Dark Brown #1D0200 ΔE 0.068
- Dark #1B2431 ΔE 0.068
- Rich Navy #001219 ΔE 0.069
- Dark Maroon #3C0008 ΔE 0.071
Use #221510 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.