#64183C
Closest named color: Merlot (#730039). oklch(34.8% 0.114 355.8), rgb(100, 24, 60).
Aa
White text reads best on this color (12.08:1).
About this color
#64183C is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.114 and its hue 356°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.036 away. White text reads best on it, at 12.08:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.73:1 |
| White text | 12.08:1 |
Values
| HEX | #64183C |
| RGB | rgb(100, 24, 60) |
| HSL | hsl(332, 61%, 24%) |
| OKLCH | oklch(34.8% 0.114 355.8) |
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 #64183C | 12.08:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #64183C | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #64183C text on white | 12.08:1 | AAA | Lc 96.7 | Preferred for body text |
| #64183C text on black | 1.73:1 | 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
#FCF2F6
oklch(97% 0.012 351)
-
Step 100
100
#F8E3EA
oklch(93.5% 0.025 355.3)
-
Step 200
200
#F4CDDA
oklch(88.5% 0.047 356.1)
-
Step 300
300
#EEAAC2
oklch(80.9% 0.085 356.3)
-
Step 400
400
#E27AA4
oklch(70.7% 0.137 355.6)
-
Step 500
500
#D6538D
oklch(63% 0.174 355.8)
-
Step 600
600
#C23177
oklch(55.6% 0.19 356)
-
Step 700
700
#A72264
oklch(49.2% 0.176 356)
-
Step 800
800
#871F52
oklch(42.6% 0.146 355.5)
-
Step 900
900 (this color)
#64183C
oklch(34.8% 0.114 355.8)
-
Step 950
950
#401528
oklch(27% 0.071 355.4)
#64183C 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) | #262D3D | 0.128 |
| Deuteranopia (no green cones) | #3B3B3A | 0.114 |
| Tritanopia (no blue cones) | #6C1027 | 0.038 |
| Achromatopsia (no color) | #363636 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64183C
#64183C
oklch(34.8% 0.114 355.8)
- #004538
#004538
oklch(34.9% 0.066 174.8)
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 #64183C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.036
- Grape Purple #5D1451 ΔE 0.045
- Burgundy #610023 ΔE 0.045
- Velvet #750851 ΔE 0.053
- Bordeaux #7B002C ΔE 0.055
- Claret #680018 ΔE 0.056
- Wine #80013F ΔE 0.060
- Wine Red #7B0323 ΔE 0.062
Use #64183C 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.