#661504
Closest named color: Reddy Brown (#6E1005). oklch(33.6% 0.117 33.5), rgb(102, 21, 4).
Aa
White text reads best on this color (12.54:1).
About this color
#661504 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.117 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.018 away. White text reads best on it, at 12.54:1.
| 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 | 12.54:1 |
Values
| HEX | #661504 |
| RGB | rgb(102, 21, 4) |
| HSL | hsl(10, 92%, 21%) |
| OKLCH | oklch(33.6% 0.117 33.5) |
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 #661504 | 12.54:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #661504 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #661504 text on white | 12.54:1 | AAA | Lc 97.3 | Preferred for body text |
| #661504 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
#F8CEC5
oklch(88.5% 0.049 32.1)
-
Step 300
300
#F4AC9C
oklch(80.9% 0.088 33)
-
Step 400
400
#EA7D65
oklch(70.7% 0.14 33.6)
-
Step 500
500
#E15639
oklch(63.2% 0.179 33.5)
-
Step 600
600
#CC320E
oklch(55.6% 0.195 33.4)
-
Step 700
700
#AF2400
oklch(49.1% 0.179 33.5)
-
Step 800
800
#8F2006
oklch(42.7% 0.15 33.5)
-
Step 900
900 (this color)
#661504
oklch(33.6% 0.117 33.5)
-
Step 950
950
#44150C
oklch(27% 0.075 32.8)
#661504 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) | #2F2801 | 0.122 |
| Deuteranopia (no green cones) | #423A00 | 0.111 |
| Tritanopia (no blue cones) | #710012 | 0.034 |
| Achromatopsia (no color) | #333333 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661504
#661504
oklch(33.6% 0.117 33.5)
- #003F49
#003F49
oklch(33.8% 0.059 212.2)
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 #661504, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.018
- Claret #680018 ΔE 0.036
- Blood #770001 ΔE 0.038
- Chestnut #742802 ΔE 0.052
- Burgundy #610023 ΔE 0.055
- Maroon #800000 ΔE 0.056
- Wine Red #7B0323 ΔE 0.060
- Bordeaux #7B002C ΔE 0.070
Use #661504 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.