#661600
Closest named color: Reddy Brown (#6E1005). oklch(33.7% 0.117 35.5), rgb(102, 22, 0).
Aa
White text reads best on this color (12.50:1).
About this color
#661600 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.117 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.019 away. White text reads best on it, at 12.50:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.67:1 |
| White text | 12.50:1 |
Values
| HEX | #661600 |
| RGB | rgb(102, 22, 0) |
| HSL | hsl(13, 100%, 20%) |
| OKLCH | oklch(33.7% 0.117 35.5) |
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 #661600 | 12.50:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #661600 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #661600 text on white | 12.50:1 | AAA | Lc 97.2 | Preferred for body text |
| #661600 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DF
oklch(93.5% 0.025 32.9)
-
Step 200
200
#F7CFC4
oklch(88.6% 0.048 35.9)
-
Step 300
300
#F3AD9A
oklch(80.9% 0.087 35.8)
-
Step 400
400
#EA7E62
oklch(70.8% 0.14 35.5)
-
Step 500
500
#E05733
oklch(63.1% 0.179 35.6)
-
Step 600
600
#CB3500
oklch(55.6% 0.193 35.4)
-
Step 700
700
#AC2C00
oklch(49.2% 0.17 35.6)
-
Step 800
800
#8E2200
oklch(42.7% 0.148 35.4)
-
Step 900
900 (this color)
#661600
oklch(33.7% 0.117 35.5)
-
Step 950
950
#43160A
oklch(26.9% 0.073 35.8)
#661600 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) | #2F2800 | 0.121 |
| Deuteranopia (no green cones) | #433A00 | 0.108 |
| Tritanopia (no blue cones) | #710012 | 0.037 |
| Achromatopsia (no color) | #343434 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661600
#661600
oklch(33.7% 0.117 35.5)
- #003F4B
#003F4B
oklch(33.9% 0.06 215.5)
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 #661600, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.019
- Blood #770001 ΔE 0.039
- Claret #680018 ΔE 0.040
- Chestnut #742802 ΔE 0.051
- Maroon #800000 ΔE 0.057
- Burgundy #610023 ΔE 0.059
- Wine Red #7B0323 ΔE 0.062
- Bordeaux #7B002C ΔE 0.073
Use #661600 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.