#210A01
Closest named color: Very Dark Brown (#1D0200). oklch(18% 0.045 48), rgb(33, 10, 1).
Aa
White text reads best on this color (18.94:1).
About this color
#210A01 is a very dark, muted brown. In OKLCH its lightness is 18%, its chroma 0.045 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.032 away. White text reads best on it, at 18.94:1.
| Hue family | Browns |
| Lightness | very dark (18%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.10:1 |
| White text | 18.94:1 |
Values
| HEX | #210A01 |
| RGB | rgb(33, 10, 1) |
| HSL | hsl(17, 94%, 7%) |
| OKLCH | oklch(18% 0.045 48) |
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 #210A01 | 18.94:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #210A01 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #210A01 text on white | 18.94:1 | AAA | Lc 105.2 | Preferred for body text |
| #210A01 text on black | 1.10:1 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E1
oklch(93.6% 0.015 48.6)
-
Step 200
200
#EBD4C9
oklch(88.6% 0.03 47.3)
-
Step 300
300
#DFB7A3
oklch(81% 0.054 48)
-
Step 400
400
#CD9071
oklch(70.6% 0.086 47.8)
-
Step 500
500
#BF744C
oklch(63.2% 0.109 48.1)
-
Step 600
600
#AA5B2E
oklch(55.6% 0.119 48.2)
-
Step 700
700
#924A20
oklch(49.1% 0.111 48)
-
Step 800
800
#773D1D
oklch(42.7% 0.092 47.4)
-
Step 900
900
#60351D
oklch(37.8% 0.072 48.6)
-
Step 950
950 (this color)
#210A01
oklch(18% 0.045 48)
#210A01 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) | #110D00 | 0.040 |
| Deuteranopia (no green cones) | #161301 | 0.038 |
| Tritanopia (no blue cones) | #250607 | 0.024 |
| Achromatopsia (no color) | #111111 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210A01
#210A01
oklch(18% 0.045 48)
- #00141E
#00141E
oklch(17.9% 0.036 230)
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 #210A01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.032
- Almost Black #070D0D ΔE 0.061
- Dark Maroon #3C0008 ΔE 0.071
- Dark Brown #341C02 ΔE 0.075
- Rich Navy #001219 ΔE 0.077
- Deep Brown #410200 ΔE 0.079
- Rich Black #0D1B2A ΔE 0.088
- Chocolate Brown #411900 ΔE 0.094
Use #210A01 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.