#66131E
Closest named color: Claret (#680018). oklch(33.8% 0.115 19.2), rgb(102, 19, 30).
Aa
White text reads best on this color (12.52:1).
About this color
#66131E is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.115 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.019 away. White text reads best on it, at 12.52:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.67:1 |
| White text | 12.52:1 |
Values
| HEX | #66131E |
| RGB | rgb(102, 19, 30) |
| HSL | hsl(352, 69%, 24%) |
| OKLCH | oklch(33.8% 0.115 19.2) |
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 #66131E | 12.52:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #66131E | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #66131E text on white | 12.52:1 | AAA | Lc 97.2 | Preferred for body text |
| #66131E text on black | 1.67:1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F8CDCC
oklch(88.5% 0.049 19.7)
-
Step 300
300
#F4AAAA
oklch(80.9% 0.088 19.1)
-
Step 400
400
#EA7A7E
oklch(70.7% 0.138 19)
-
Step 500
500
#E0525D
oklch(63.1% 0.177 19.3)
-
Step 600
600
#CB2E43
oklch(55.6% 0.192 19.4)
-
Step 700
700
#AF1D35
oklch(49% 0.179 19.2)
-
Step 800
800
#8E1D2C
oklch(42.7% 0.147 19.5)
-
Step 900
900 (this color)
#66131E
oklch(33.8% 0.115 19.2)
-
Step 950
950
#431418
oklch(26.9% 0.073 18.4)
#66131E 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) | #2B281E | 0.127 |
| Deuteranopia (no green cones) | #403A1C | 0.116 |
| Tritanopia (no blue cones) | #710018 | 0.026 |
| Achromatopsia (no color) | #343434 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66131E
#66131E
oklch(33.8% 0.115 19.2)
- #004043
#004043
oklch(33.8% 0.057 200.1)
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 #66131E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.019
- Reddy Brown #6E1005 ΔE 0.030
- Burgundy #610023 ΔE 0.032
- Blood #770001 ΔE 0.043
- Wine Red #7B0323 ΔE 0.046
- Bordeaux #7B002C ΔE 0.051
- Merlot #730039 ΔE 0.056
- Maroon #800000 ΔE 0.060
Use #66131E 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.