#661B3A
Closest named color: Merlot (#730039). oklch(35.4% 0.111 359.2), rgb(102, 27, 58).
Aa
White text reads best on this color (11.77:1).
About this color
#661B3A is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.111 and its hue 359°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.035 away. White text reads best on it, at 11.77:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.111) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.78:1 |
| White text | 11.77:1 |
Values
| HEX | #661B3A |
| RGB | rgb(102, 27, 58) |
| HSL | hsl(335, 58%, 25%) |
| OKLCH | oklch(35.4% 0.111 359.2) |
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 #661B3A | 11.77:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #661B3A | 1.78:1 | Fails | Lc 7.7 | Not readable |
| #661B3A text on white | 11.77:1 | AAA | Lc 96.2 | Preferred for body text |
| #661B3A text on black | 1.78:1 | 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
#FCF2F5
oklch(97% 0.011 357)
-
Step 100
100
#F8E4E9
oklch(93.6% 0.023 0.5)
-
Step 200
200
#F4CDD8
oklch(88.5% 0.046 359.2)
-
Step 300
300
#EEABBF
oklch(81% 0.082 359.5)
-
Step 400
400
#E27B9E
oklch(70.7% 0.133 359.4)
-
Step 500
500
#D75587
oklch(63.2% 0.17 359.2)
-
Step 600
600
#C23470
oklch(55.7% 0.184 359.5)
-
Step 700
700
#A7245E
oklch(49.1% 0.172 359.3)
-
Step 800
800
#87214D
oklch(42.6% 0.142 359)
-
Step 900
900 (this color)
#661B3A
oklch(35.4% 0.111 359.2)
-
Step 950
950
#401525
oklch(26.9% 0.07 359.7)
#661B3A 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) | #2A2F3B | 0.124 |
| Deuteranopia (no green cones) | #3E3D38 | 0.112 |
| Tritanopia (no blue cones) | #6F1228 | 0.034 |
| Achromatopsia (no color) | #383838 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661B3A
#661B3A
oklch(35.4% 0.111 359.2)
- #00463C
#00463C
oklch(35.3% 0.064 179.2)
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 #661B3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.035
- Burgundy #610023 ΔE 0.047
- Bordeaux #7B002C ΔE 0.050
- Grape Purple #5D1451 ΔE 0.053
- Claret #680018 ΔE 0.053
- Velvet #750851 ΔE 0.055
- Wine Red #7B0323 ΔE 0.055
- Wine #80013F ΔE 0.057
Use #661B3A 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.