#210C17
Closest named color: Very Dark Brown (#1D0200). oklch(19.2% 0.04 348.9), rgb(33, 12, 23).
Aa
White text reads best on this color (18.59:1).
About this color
#210C17 is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.040 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.056 away. White text reads best on it, at 18.59:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.12:1 |
| White text | 18.59:1 |
Values
| HEX | #210C17 |
| RGB | rgb(33, 12, 23) |
| HSL | hsl(329, 47%, 9%) |
| OKLCH | oklch(19.2% 0.04 348.9) |
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 #210C17 | 18.59:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #210C17 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #210C17 text on white | 18.59:1 | AAA | Lc 105.0 | Preferred for body text |
| #210C17 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F1E6EB
oklch(93.5% 0.014 348)
-
Step 200
200
#E7D2DC
oklch(88.4% 0.027 347.2)
-
Step 300
300
#D9B5C5
oklch(80.9% 0.046 349.6)
-
Step 400
400
#C58DA8
oklch(70.6% 0.076 348.8)
-
Step 500
500
#B57193
oklch(63.2% 0.096 348.8)
-
Step 600
600
#A0587D
oklch(55.6% 0.105 348.9)
-
Step 700
700
#89486A
oklch(49.2% 0.098 348.7)
-
Step 800
800
#6F3B56
oklch(42.6% 0.081 348.7)
-
Step 900
900
#5A3347
oklch(37.6% 0.063 348.5)
-
Step 950
950 (this color)
#210C17
oklch(19.2% 0.04 348.9)
#210C17 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) | #0E1117 | 0.043 |
| Deuteranopia (no green cones) | #141416 | 0.038 |
| Tritanopia (no blue cones) | #240B10 | 0.015 |
| Achromatopsia (no color) | #131313 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210C17
#210C17
oklch(19.2% 0.04 348.9)
- #001A11
#001A11
oklch(19.3% 0.039 167.8)
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 #210C17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.056
- Rich Black #0D1B2A ΔE 0.063
- Almost Black #070D0D ΔE 0.063
- Rich Navy #001219 ΔE 0.068
- Dark Maroon #3C0008 ΔE 0.069
- Very Dark Purple #2A0134 ΔE 0.070
- Midnight Purple #280137 ΔE 0.074
- Eggplant #380835 ΔE 0.080
Use #210C17 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.