#63173F
Closest named color: Merlot (#730039). oklch(34.6% 0.115 352.7), rgb(99, 23, 63).
Aa
White text reads best on this color (12.17:1).
About this color
#63173F is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.115 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.037 away. White text reads best on it, at 12.17:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.72:1 |
| White text | 12.17:1 |
Values
| HEX | #63173F |
| RGB | rgb(99, 23, 63) |
| HSL | hsl(328, 62%, 24%) |
| OKLCH | oklch(34.6% 0.115 352.7) |
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 #63173F | 12.17:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #63173F | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #63173F text on white | 12.17:1 | AAA | Lc 96.8 | Preferred for body text |
| #63173F text on black | 1.72:1 | 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
#F8E3EB
oklch(93.5% 0.025 352.5)
-
Step 200
200
#F4CDDC
oklch(88.6% 0.048 353)
-
Step 300
300
#EDAAC6
oklch(80.9% 0.086 352.4)
-
Step 400
400
#E17AA9
oklch(70.8% 0.138 352.4)
-
Step 500
500
#D65293
oklch(63.1% 0.178 352.8)
-
Step 600
600
#C1307E
oklch(55.6% 0.193 352.5)
-
Step 700
700
#A6216A
oklch(49.1% 0.179 352.7)
-
Step 800
800
#871F56
oklch(42.8% 0.148 353)
-
Step 900
900 (this color)
#63173F
oklch(34.6% 0.115 352.7)
-
Step 950
950
#40142A
oklch(27% 0.074 352.1)
#63173F 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) | #242D40 | 0.129 |
| Deuteranopia (no green cones) | #3A3B3D | 0.116 |
| Tritanopia (no blue cones) | #6B1128 | 0.042 |
| Achromatopsia (no color) | #363636 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63173F
#63173F
oklch(34.6% 0.115 352.7)
- #004436
#004436
oklch(34.5% 0.066 173.3)
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 #63173F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.037
- Grape Purple #5D1451 ΔE 0.038
- Burgundy #610023 ΔE 0.049
- Velvet #750851 ΔE 0.050
- Rich Purple #720058 ΔE 0.058
- Bordeaux #7B002C ΔE 0.060
- Claret #680018 ΔE 0.061
- Wine #80013F ΔE 0.062
Use #63173F 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.