#210A15
Closest named color: Very Dark Brown (#1D0200). oklch(18.7% 0.043 352.1), rgb(33, 10, 21).
Aa
White text reads best on this color (18.76:1).
About this color
#210A15 is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.043 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.051 away. White text reads best on it, at 18.76:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.11:1 |
| White text | 18.76:1 |
Values
| HEX | #210A15 |
| RGB | rgb(33, 10, 21) |
| HSL | hsl(331, 53%, 8%) |
| OKLCH | oklch(18.7% 0.043 352.1) |
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 #210A15 | 18.76:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #210A15 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #210A15 text on white | 18.76:1 | AAA | Lc 105.1 | Preferred for body text |
| #210A15 text on black | 1.11:1 | 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
#E9D2DB
oklch(88.5% 0.028 352)
-
Step 300
300
#DCB4C4
oklch(81% 0.051 352.3)
-
Step 400
400
#C98CA6
oklch(70.8% 0.081 352.1)
-
Step 500
500
#B96E90
oklch(63% 0.104 351.8)
-
Step 600
600
#A4557A
oklch(55.5% 0.113 351.9)
-
Step 700
700
#8D4567
oklch(49.1% 0.106 352)
-
Step 800
800
#723954
oklch(42.6% 0.087 351.7)
-
Step 900
900
#5D3245
oklch(37.8% 0.067 352.8)
-
Step 950
950 (this color)
#210A15
oklch(18.7% 0.043 352.1)
#210A15 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) | #0D0F15 | 0.046 |
| Deuteranopia (no green cones) | #131314 | 0.042 |
| Tritanopia (no blue cones) | #24090E | 0.015 |
| Achromatopsia (no color) | #121212 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210A15
#210A15
oklch(18.7% 0.043 352.1)
- #001811
#001811
oklch(18.6% 0.036 171.8)
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 #210A15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.051
- Almost Black #070D0D ΔE 0.062
- Rich Black #0D1B2A ΔE 0.068
- Dark Maroon #3C0008 ΔE 0.068
- Rich Navy #001219 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.071
- Midnight Purple #280137 ΔE 0.075
- Eggplant #380835 ΔE 0.082
Use #210A15 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.