#660511
Closest named color: Claret (#680018). oklch(32.5% 0.126 23.3), rgb(102, 5, 17).
Aa
White text reads best on this color (13.16:1).
About this color
#660511 is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.126 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.012 away. White text reads best on it, at 13.16:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.59:1 |
| White text | 13.16:1 |
Values
| HEX | #660511 |
| RGB | rgb(102, 5, 17) |
| HSL | hsl(353, 91%, 21%) |
| OKLCH | oklch(32.5% 0.126 23.3) |
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 #660511 | 13.16:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #660511 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #660511 text on white | 13.16:1 | AAA | Lc 97.8 | Preferred for body text |
| #660511 text on black | 1.59:1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FACCC9
oklch(88.4% 0.052 22.6)
-
Step 300
300
#F8A9A4
oklch(81% 0.094 23.4)
-
Step 400
400
#F07672
oklch(70.7% 0.151 23.6)
-
Step 500
500
#E74A4E
oklch(63.1% 0.193 23.3)
-
Step 600
600
#D31D31
oklch(55.7% 0.211 23.3)
-
Step 700
700
#B60524
oklch(49.1% 0.196 23.2)
-
Step 800
800
#94101F
oklch(42.8% 0.163 23.3)
-
Step 900
900 (this color)
#660511
oklch(32.5% 0.126 23.3)
-
Step 950
950
#461213
oklch(27.1% 0.08 23.1)
#660511 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) | #272310 | 0.141 |
| Deuteranopia (no green cones) | #3E370D | 0.127 |
| Tritanopia (no blue cones) | #71000B | 0.025 |
| Achromatopsia (no color) | #303030 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660511
#660511
oklch(32.5% 0.126 23.3)
- #003C41
#003C41
oklch(32.5% 0.055 204)
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 #660511, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.012
- Reddy Brown #6E1005 ΔE 0.028
- Burgundy #610023 ΔE 0.032
- Blood #770001 ΔE 0.040
- Wine Red #7B0323 ΔE 0.053
- Bordeaux #7B002C ΔE 0.059
- Maroon #800000 ΔE 0.060
- Merlot #730039 ΔE 0.066
Use #660511 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.