#660406
Closest named color: Claret (#680018). oklch(32.4% 0.128 27.7), rgb(102, 4, 6).
Aa
White text reads best on this color (13.24:1).
About this color
#660406 is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.128 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.021 away. White text reads best on it, at 13.24:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.58:1 |
| White text | 13.24:1 |
Values
| HEX | #660406 |
| RGB | rgb(102, 4, 6) |
| HSL | hsl(359, 92%, 21%) |
| OKLCH | oklch(32.4% 0.128 27.7) |
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 #660406 | 13.24:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #660406 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #660406 text on white | 13.24:1 | AAA | Lc 97.8 | Preferred for body text |
| #660406 text on black | 1.58:1 | 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
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FBCDC6
oklch(88.6% 0.053 28.3)
-
Step 300
300
#F9A99E
oklch(81% 0.097 28)
-
Step 400
400
#F17669
oklch(70.6% 0.154 27.8)
-
Step 500
500
#E84A40
oklch(63.1% 0.196 27.8)
-
Step 600
600
#D41D1D
oklch(55.7% 0.214 27.9)
-
Step 700
700
#B7040F
oklch(49.1% 0.199 27.7)
-
Step 800
800
#941011
oklch(42.6% 0.164 27.7)
-
Step 900
900 (this color)
#660406
oklch(32.4% 0.128 27.7)
-
Step 950
950
#46120E
oklch(27% 0.081 28.1)
#660406 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) | #282204 | 0.141 |
| Deuteranopia (no green cones) | #3F3701 | 0.126 |
| Tritanopia (no blue cones) | #710007 | 0.025 |
| Achromatopsia (no color) | #303030 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660406
#660406
oklch(32.4% 0.128 27.7)
- #003B42
#003B42
oklch(32.2% 0.055 207.8)
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 #660406, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.021
- Reddy Brown #6E1005 ΔE 0.026
- Blood #770001 ΔE 0.039
- Burgundy #610023 ΔE 0.041
- Wine Red #7B0323 ΔE 0.058
- Maroon #800000 ΔE 0.059
- Bordeaux #7B002C ΔE 0.066
- Mahogany #4A0100 ΔE 0.070
Use #660406 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.