#673F80
Closest named color: Rebecca Purple (#663399). oklch(44.3% 0.111 311), rgb(103, 63, 128).
Aa
White text reads best on this color (8.07:1).
About this color
#673F80 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.111 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.052 away. White text reads best on it, at 8.07:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.59:1 |
| White text | 8.07:1 |
Values
| HEX | #673F80 |
| RGB | rgb(103, 63, 128) |
| HSL | hsl(277, 34%, 37%) |
| OKLCH | oklch(44.3% 0.111 311) |
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 #673F80 | 8.07:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #673F80 | 2.59:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #673F80 text on white | 8.07:1 | AAA | Lc 87.7 | Fine for body text |
| #673F80 text on black | 2.59:1 | Fails | Lc -14.4 | 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 800.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE7F3
oklch(93.7% 0.018 311.6)
-
Step 200
200
#E1D3EB
oklch(88.5% 0.036 311.4)
-
Step 300
300
#CEB5E0
oklch(80.8% 0.065 311)
-
Step 400
400
#B58ED0
oklch(70.7% 0.103 310.9)
-
Step 500
500
#A370C4
oklch(63% 0.133 311)
-
Step 600
600
#8E57B0
oklch(55.6% 0.144 311.1)
-
Step 700
700
#794798
oklch(49.2% 0.134 310.9)
-
Step 800
800 (this color)
#673F80
oklch(44.3% 0.111 311)
-
Step 900
900
#503363
oklch(37.7% 0.086 310.7)
-
Step 950
950
#2F1E3A
oklch(27% 0.055 311.1)
#673F80 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) | #2F4E82 | 0.091 |
| Deuteranopia (no green cones) | #3B517E | 0.082 |
| Tritanopia (no blue cones) | #644959 | 0.077 |
| Achromatopsia (no color) | #505050 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673F80
#673F80
oklch(44.3% 0.111 311)
- #3D5F11
#3D5F11
oklch(44.3% 0.111 130.9)
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 #673F80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.052
- Twilight #4E518B ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.060
- Dusk #4E5481 ΔE 0.067
- Blueberry #464196 ΔE 0.068
- Light Eggplant #894585 ΔE 0.069
- Dusty Grape #545775 ΔE 0.077
- Muted Purple #805B87 ΔE 0.090
Use #673F80 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.