#63173D
Closest named color: Merlot (#730039). oklch(34.5% 0.114 354.3), rgb(99, 23, 61).
Aa
White text reads best on this color (12.20:1).
About this color
#63173D is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.114 and its hue 354°. 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 12.20:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.72:1 |
| White text | 12.20:1 |
Values
| HEX | #63173D |
| RGB | rgb(99, 23, 61) |
| HSL | hsl(330, 62%, 24%) |
| OKLCH | oklch(34.5% 0.114 354.3) |
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 #63173D | 12.20:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #63173D | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #63173D text on white | 12.20:1 | AAA | Lc 96.9 | Preferred for body text |
| #63173D 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
#F4CDDB
oklch(88.5% 0.047 354.5)
-
Step 300
300
#EEAAC4
oklch(81% 0.086 354.5)
-
Step 400
400
#E27AA6
oklch(70.8% 0.137 354.4)
-
Step 500
500
#D65390
oklch(63.1% 0.175 354.4)
-
Step 600
600
#C1317A
oklch(55.6% 0.19 354.4)
-
Step 700
700
#A62167
oklch(49% 0.178 354.2)
-
Step 800
800
#871F54
oklch(42.7% 0.147 354.3)
-
Step 900
900 (this color)
#63173D
oklch(34.5% 0.114 354.3)
-
Step 950
950
#401429
oklch(26.9% 0.073 353.5)
#63173D 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) | #252C3E | 0.128 |
| Deuteranopia (no green cones) | #3A3A3B | 0.114 |
| Tritanopia (no blue cones) | #6B1027 | 0.040 |
| Achromatopsia (no color) | #353535 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63173D
#63173D
oklch(34.5% 0.114 354.3)
- #004437
#004437
oklch(34.5% 0.065 174.6)
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 #63173D, 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 0.041
- Burgundy #610023 ΔE 0.046
- Velvet #750851 ΔE 0.053
- Claret #680018 ΔE 0.057
- Bordeaux #7B002C ΔE 0.058
- Rich Purple #720058 ΔE 0.061
- Wine #80013F ΔE 0.062
Use #63173D 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.