#210B16
Closest named color: Very Dark Brown (#1D0200). oklch(18.9% 0.041 350.5), rgb(33, 11, 22).
Aa
White text reads best on this color (18.68:1).
About this color
#210B16 is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.041 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.053 away. White text reads best on it, at 18.68:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.12:1 |
| White text | 18.68:1 |
Values
| HEX | #210B16 |
| RGB | rgb(33, 11, 22) |
| HSL | hsl(330, 50%, 9%) |
| OKLCH | oklch(18.9% 0.041 350.5) |
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 #210B16 | 18.68:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #210B16 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #210B16 text on white | 18.68:1 | AAA | Lc 105.1 | Preferred for body text |
| #210B16 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
#F2E6EB
oklch(93.6% 0.015 350.1)
-
Step 200
200
#E8D2DB
oklch(88.4% 0.027 350.9)
-
Step 300
300
#DAB4C5
oklch(80.8% 0.049 349.6)
-
Step 400
400
#C78DA7
oklch(70.8% 0.078 350.7)
-
Step 500
500
#B76F91
oklch(63% 0.1 350.6)
-
Step 600
600
#A2577C
oklch(55.6% 0.108 350.3)
-
Step 700
700
#8B4668
oklch(49.1% 0.102 350.7)
-
Step 800
800
#713A55
oklch(42.7% 0.085 350.5)
-
Step 900
900
#5C3246
oklch(37.7% 0.067 350.8)
-
Step 950
950 (this color)
#210B16
oklch(18.9% 0.041 350.5)
#210B16 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) | #0D1016 | 0.046 |
| Deuteranopia (no green cones) | #131415 | 0.042 |
| Tritanopia (no blue cones) | #240A0F | 0.015 |
| Achromatopsia (no color) | #121212 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210B16
#210B16
oklch(18.9% 0.041 350.5)
- #001911
#001911
oklch(19% 0.038 169.7)
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 #210B16, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.053
- Almost Black #070D0D ΔE 0.063
- Rich Black #0D1B2A ΔE 0.065
- Rich Navy #001219 ΔE 0.069
- Dark Maroon #3C0008 ΔE 0.069
- Very Dark Purple #2A0134 ΔE 0.070
- Midnight Purple #280137 ΔE 0.075
- Eggplant #380835 ΔE 0.081
Use #210B16 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.