#210010
Closest named color: Very Dark Brown (#1D0200). oklch(16.2% 0.067 353.3), rgb(33, 0, 16).
Aa
White text reads best on this color (19.58:1).
About this color
#210010 is a very dark, muted red. In OKLCH its lightness is 16%, its chroma 0.067 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.045 away. White text reads best on it, at 19.58:1.
| Hue family | Reds |
| Lightness | very dark (16%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.07:1 |
| White text | 19.58:1 |
Values
| HEX | #210010 |
| RGB | rgb(33, 0, 16) |
| HSL | hsl(331, 100%, 6%) |
| OKLCH | oklch(16.2% 0.067 353.3) |
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 #210010 | 19.58:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #210010 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #210010 text on white | 19.58:1 | AAA | Lc 105.3 | Preferred for body text |
| #210010 text on black | 1.07:1 | 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F7E4EB
oklch(93.6% 0.023 353.2)
-
Step 200
200
#F2CEDB
oklch(88.6% 0.044 354.3)
-
Step 300
300
#EAACC5
oklch(80.9% 0.079 353)
-
Step 400
400
#DD7EA7
oklch(70.8% 0.126 353.5)
-
Step 500
500
#D15991
oklch(63.2% 0.162 353.6)
-
Step 600
600
#BC3A7C
oklch(55.7% 0.177 353.2)
-
Step 700
700
#A12B68
oklch(49% 0.164 353.3)
-
Step 800
800
#832655
oklch(42.7% 0.135 353.3)
-
Step 900
900
#6A2546
oklch(37.8% 0.105 353.6)
-
Step 950
950 (this color)
#210010
oklch(16.2% 0.067 353.3)
#210010 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) | #040711 | 0.077 |
| Deuteranopia (no green cones) | #0E0E0F | 0.066 |
| Tritanopia (no blue cones) | #250005 | 0.028 |
| Achromatopsia (no color) | #0C0C0C | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210010
#210010
oklch(16.2% 0.067 353.3)
- #00120D
#00120D
oklch(16.3% 0.031 174.9)
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 #210010, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.045
- Very Dark Purple #2A0134 ΔE 0.075
- Dark Maroon #3C0008 ΔE 0.077
- Almost Black #070D0D ΔE 0.077
- Midnight Purple #280137 ΔE 0.080
- Rich Navy #001219 ΔE 0.091
- Dark Plum #3F012C ΔE 0.092
- Eggplant #380835 ΔE 0.094
Use #210010 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.