#681A37
Closest named color: Merlot (#730039). oklch(35.6% 0.113 2.2), rgb(104, 26, 55).
Aa
White text reads best on this color (11.72:1).
About this color
#681A37 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.113 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.033 away. White text reads best on it, at 11.72:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.79:1 |
| White text | 11.72:1 |
Values
| HEX | #681A37 |
| RGB | rgb(104, 26, 55) |
| HSL | hsl(338, 60%, 25%) |
| OKLCH | oklch(35.6% 0.113 2.2) |
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 #681A37 | 11.72:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #681A37 | 1.79:1 | Fails | Lc 7.9 | Not readable |
| #681A37 text on white | 11.72:1 | AAA | Lc 96.0 | Preferred for body text |
| #681A37 text on black | 1.79:1 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#F9E3E8
oklch(93.5% 0.025 2.1)
-
Step 200
200
#F5CDD6
oklch(88.5% 0.046 2.9)
-
Step 300
300
#F0AABC
oklch(80.9% 0.085 2.3)
-
Step 400
400
#E57A9A
oklch(70.8% 0.136 2.1)
-
Step 500
500
#D95381
oklch(63.1% 0.172 2.1)
-
Step 600
600
#C5306A
oklch(55.6% 0.189 2.3)
-
Step 700
700
#A92158
oklch(49.1% 0.174 2.4)
-
Step 800
800
#891F48
oklch(42.6% 0.144 2.4)
-
Step 900
900 (this color)
#681A37
oklch(35.6% 0.113 2.2)
-
Step 950
950
#411423
oklch(26.9% 0.072 2.5)
#681A37 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) | #2B2E38 | 0.126 |
| Deuteranopia (no green cones) | #403E35 | 0.115 |
| Tritanopia (no blue cones) | #710E26 | 0.032 |
| Achromatopsia (no color) | #383838 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #681A37
#681A37
oklch(35.6% 0.113 2.2)
- #00473F
#00473F
oklch(35.7% 0.064 182.3)
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 #681A37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.033
- Bordeaux #7B002C ΔE 0.044
- Burgundy #610023 ΔE 0.045
- Claret #680018 ΔE 0.048
- Wine Red #7B0323 ΔE 0.049
- Wine #80013F ΔE 0.054
- Velvet #750851 ΔE 0.057
- Grape Purple #5D1451 ΔE 0.059
Use #681A37 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.