#64003E
Closest named color: Merlot (#730039). oklch(33.1% 0.138 351.1), rgb(100, 0, 62).
Aa
White text reads best on this color (13.03:1).
About this color
#64003E is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.138 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.038 away. White text reads best on it, at 13.03:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.138) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.61:1 |
| White text | 13.03:1 |
Values
| HEX | #64003E |
| RGB | rgb(100, 0, 62) |
| HSL | hsl(323, 100%, 20%) |
| OKLCH | oklch(33.1% 0.138 351.1) |
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 #64003E | 13.03:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #64003E | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #64003E text on white | 13.03:1 | AAA | Lc 97.4 | Preferred for body text |
| #64003E text on black | 1.61:1 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FBE2EC
oklch(93.6% 0.03 351.5)
-
Step 200
200
#F8CADE
oklch(88.5% 0.058 350.4)
-
Step 300
300
#F4A5C9
oklch(80.9% 0.103 350.7)
-
Step 400
400
#EB70AD
oklch(70.8% 0.165 351.2)
-
Step 500
500
#E04199
oklch(63.1% 0.211 350.9)
-
Step 600
600
#CB0583
oklch(55.5% 0.229 351)
-
Step 700
700
#AD006E
oklch(49.2% 0.204 351.3)
-
Step 800
800
#8E015A
oklch(42.6% 0.176 351.1)
-
Step 900
900 (this color)
#64003E
oklch(33.1% 0.138 351.1)
-
Step 950
950
#440F2B
oklch(27.1% 0.087 352)
#64003E 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) | #19263F | 0.157 |
| Deuteranopia (no green cones) | #35373C | 0.137 |
| Tritanopia (no blue cones) | #6C0021 | 0.055 |
| Achromatopsia (no color) | #313131 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64003E
#64003E
oklch(33.1% 0.138 351.1)
- #004031
#004031
oklch(33.1% 0.065 171)
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 #64003E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.038
- Grape Purple #5D1451 ΔE 0.039
- Burgundy #610023 ΔE 0.047
- Velvet #750851 ΔE 0.050
- Rich Purple #720058 ΔE 0.053
- Plum Purple #4E0550 ΔE 0.063
- Claret #680018 ΔE 0.065
- Bordeaux #7B002C ΔE 0.066
Use #64003E 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.