#660B2F
Closest named color: Burgundy (#610023). oklch(33.6% 0.124 4.4), rgb(102, 11, 47).
Aa
White text reads best on this color (12.69:1).
About this color
#660B2F is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.124 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.024 away. White text reads best on it, at 12.69:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.124) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.65:1 |
| White text | 12.69:1 |
Values
| HEX | #660B2F |
| RGB | rgb(102, 11, 47) |
| HSL | hsl(336, 81%, 22%) |
| OKLCH | oklch(33.6% 0.124 4.4) |
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 #660B2F | 12.69:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #660B2F | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #660B2F text on white | 12.69:1 | AAA | Lc 97.3 | Preferred for body text |
| #660B2F text on black | 1.65:1 | 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 900.
-
Step 50
50
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#FBE3E7
oklch(93.6% 0.027 6.2)
-
Step 200
200
#F8CCD5
oklch(88.6% 0.051 4.4)
-
Step 300
300
#F5A7B9
oklch(80.9% 0.094 4.3)
-
Step 400
400
#EB7595
oklch(70.7% 0.149 4.5)
-
Step 500
500
#E1497B
oklch(63% 0.191 4.4)
-
Step 600
600
#CC1F64
oklch(55.5% 0.207 4.4)
-
Step 700
700
#B00B53
oklch(49.1% 0.192 4.5)
-
Step 800
800
#8F1244
oklch(42.7% 0.159 4.5)
-
Step 900
900 (this color)
#660B2F
oklch(33.6% 0.124 4.4)
-
Step 950
950
#441222
oklch(27.1% 0.078 4.3)
#660B2F 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) | #242730 | 0.141 |
| Deuteranopia (no green cones) | #3C392D | 0.127 |
| Tritanopia (no blue cones) | #70001C | 0.035 |
| Achromatopsia (no color) | #333333 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660B2F
#660B2F
oklch(33.6% 0.124 4.4)
- #00413B
#00413B
oklch(33.7% 0.06 184.6)
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 #660B2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.024
- Merlot #730039 ΔE 0.033
- Claret #680018 ΔE 0.034
- Bordeaux #7B002C ΔE 0.046
- Wine Red #7B0323 ΔE 0.051
- Reddy Brown #6E1005 ΔE 0.060
- Wine #80013F ΔE 0.062
- Grape Purple #5D1451 ΔE 0.063
Use #660B2F 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.