#661E19
Closest named color: Reddy Brown (#6E1005). oklch(34.9% 0.104 27.7), rgb(102, 30, 25).
Aa
White text reads best on this color (11.90:1).
About this color
#661E19 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.104 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.025 away. White text reads best on it, at 11.90:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.104) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.76:1 |
| White text | 11.90:1 |
Values
| HEX | #661E19 |
| RGB | rgb(102, 30, 25) |
| HSL | hsl(4, 61%, 25%) |
| OKLCH | oklch(34.9% 0.104 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 #661E19 | 11.90:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #661E19 | 1.76:1 | Fails | Lc 7.5 | Not readable |
| #661E19 text on white | 11.90:1 | AAA | Lc 96.4 | Preferred for body text |
| #661E19 text on black | 1.76:1 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F9E5E2
oklch(93.7% 0.022 27.8)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#EFAEA5
oklch(80.9% 0.078 27.8)
-
Step 400
400
#E48074
oklch(70.7% 0.126 27.9)
-
Step 500
500
#D95C50
oklch(63.1% 0.16 28)
-
Step 600
600
#C53D34
oklch(55.7% 0.174 27.9)
-
Step 700
700
#A92D27
oklch(49% 0.162 27.6)
-
Step 800
800
#8A2721
oklch(42.7% 0.135 27.8)
-
Step 900
900 (this color)
#661E19
oklch(34.9% 0.104 27.7)
-
Step 950
950
#411713
oklch(26.9% 0.066 27.8)
#661E19 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) | #322D18 | 0.111 |
| Deuteranopia (no green cones) | #443D17 | 0.102 |
| Tritanopia (no blue cones) | #710A1D | 0.034 |
| Achromatopsia (no color) | #373737 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661E19
#661E19
oklch(34.9% 0.104 27.7)
- #00434A
#00434A
oklch(35% 0.06 206.6)
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 #661E19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.025
- Claret #680018 ΔE 0.039
- Blood #770001 ΔE 0.043
- Chestnut #742802 ΔE 0.047
- Wine Red #7B0323 ΔE 0.053
- Burgundy #610023 ΔE 0.054
- Maroon #800000 ΔE 0.057
- Bordeaux #7B002C ΔE 0.061
Use #661E19 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.