#670540
Closest named color: Merlot (#730039). oklch(34.1% 0.136 351.5), rgb(103, 5, 64).
Aa
White text reads best on this color (12.55:1).
About this color
#670540 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.136 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.030 away. White text reads best on it, at 12.55:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.136) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.67:1 |
| White text | 12.55:1 |
Values
| HEX | #670540 |
| RGB | rgb(103, 5, 64) |
| HSL | hsl(324, 91%, 21%) |
| OKLCH | oklch(34.1% 0.136 351.5) |
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 #670540 | 12.55:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #670540 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #670540 text on white | 12.55:1 | AAA | Lc 96.8 | Preferred for body text |
| #670540 text on black | 1.67:1 | 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
#F8CADD
oklch(88.4% 0.057 351.6)
-
Step 300
300
#F4A5C8
oklch(80.9% 0.103 351.5)
-
Step 400
400
#EA70AC
oklch(70.6% 0.164 351.4)
-
Step 500
500
#E04298
oklch(63.1% 0.209 351.4)
-
Step 600
600
#CB0982
oklch(55.6% 0.227 351.5)
-
Step 700
700
#AD006E
oklch(49.2% 0.204 351.3)
-
Step 800
800
#8E035A
oklch(42.7% 0.175 351.2)
-
Step 900
900 (this color)
#670540
oklch(34.1% 0.136 351.5)
-
Step 950
950
#440F2B
oklch(27.1% 0.087 352)
#670540 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) | #1C2941 | 0.156 |
| Deuteranopia (no green cones) | #38393E | 0.135 |
| Tritanopia (no blue cones) | #700024 | 0.052 |
| Achromatopsia (no color) | #333333 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #670540
#670540
oklch(34.1% 0.136 351.5)
- #004334
#004334
oklch(34.1% 0.066 171.7)
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 #670540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.030
- Grape Purple #5D1451 ΔE 0.038
- Velvet #750851 ΔE 0.041
- Rich Purple #720058 ΔE 0.047
- Burgundy #610023 ΔE 0.050
- Wine #80013F ΔE 0.057
- Bordeaux #7B002C ΔE 0.059
- Red Purple #820747 ΔE 0.062
Use #670540 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.