#210D0C
Closest named color: Very Dark Brown (#1D0200). oklch(18.9% 0.035 23.9), rgb(33, 13, 12).
Aa
White text reads best on this color (18.62:1).
About this color
#210D0C is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.035 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.044 away. White text reads best on it, at 18.62:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.12:1 |
| White text | 18.62:1 |
Values
| HEX | #210D0C |
| RGB | rgb(33, 13, 12) |
| HSL | hsl(3, 47%, 9%) |
| OKLCH | oklch(18.9% 0.035 23.9) |
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 #210D0C | 18.62:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #210D0C | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #210D0C text on white | 18.62:1 | AAA | Lc 105.1 | Preferred for body text |
| #210D0C text on black | 1.12:1 | 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E8D4D2
oklch(88.6% 0.022 24.5)
-
Step 300
300
#DAB7B4
oklch(80.9% 0.041 23.8)
-
Step 400
400
#C6918D
oklch(70.7% 0.065 23.7)
-
Step 500
500
#B77571
oklch(63.1% 0.084 23.5)
-
Step 600
600
#A25D59
oklch(55.6% 0.091 23.9)
-
Step 700
700
#8A4C49
oklch(49% 0.084 23.5)
-
Step 800
800
#713F3C
oklch(42.8% 0.07 24.1)
-
Step 900
900
#5B3633
oklch(37.7% 0.054 24.9)
-
Step 950
950 (this color)
#210D0C
oklch(18.9% 0.035 23.9)
#210D0C 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) | #11100C | 0.037 |
| Deuteranopia (no green cones) | #16140C | 0.033 |
| Tritanopia (no blue cones) | #250A0D | 0.013 |
| Achromatopsia (no color) | #131313 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210D0C
#210D0C
oklch(18.9% 0.035 23.9)
- #00181A
#00181A
oklch(19% 0.032 202)
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 #210D0C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.044
- Almost Black #070D0D ΔE 0.058
- Dark Maroon #3C0008 ΔE 0.066
- Rich Navy #001219 ΔE 0.068
- Rich Black #0D1B2A ΔE 0.070
- Dark Brown #341C02 ΔE 0.073
- Deep Brown #410200 ΔE 0.077
- Jet #212529 ΔE 0.084
Use #210D0C 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.