#673187
Closest named color: Rebecca Purple (#663399). oklch(42.6% 0.143 310.7), rgb(103, 49, 135).
Aa
White text reads best on this color (8.87:1).
About this color
#673187 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.143 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 0.030 away. White text reads best on it, at 8.87:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.36:1 |
| White text | 8.87:1 |
Values
| HEX | #673187 |
| RGB | rgb(103, 49, 135) |
| HSL | hsl(278, 47%, 36%) |
| OKLCH | oklch(42.6% 0.143 310.7) |
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 #673187 | 8.87:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #673187 | 2.36:1 | Fails | Lc 14.2 | Not readable |
| #673187 text on white | 8.87:1 | AAA | Lc 89.8 | Fine for body text |
| #673187 text on black | 2.36:1 | Fails | Lc -12.4 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F6
oklch(93.7% 0.023 310.7)
-
Step 200
200
#E3D1F0
oklch(88.5% 0.046 311.2)
-
Step 300
300
#D2B2E9
oklch(81% 0.083 310.8)
-
Step 400
400
#BB87DE
oklch(70.7% 0.134 310.8)
-
Step 500
500
#AA66D4
oklch(63% 0.171 311)
-
Step 600
600
#954AC2
oklch(55.6% 0.186 310.5)
-
Step 700
700
#7F3AA7
oklch(49% 0.173 310.7)
-
Step 800
800 (this color)
#673187
oklch(42.6% 0.143 310.7)
-
Step 900
900
#542D6C
oklch(37.7% 0.11 310.8)
-
Step 950
950
#311B3F
oklch(27% 0.069 310.8)
#673187 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) | #0B478A | 0.127 |
| Deuteranopia (no green cones) | #284B85 | 0.112 |
| Tritanopia (no blue cones) | #634257 | 0.099 |
| Achromatopsia (no color) | #4A4A4A | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673187
#673187
oklch(42.6% 0.143 310.7)
- #385A00
#385A00
oklch(42.5% 0.115 130.4)
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 #673187, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.061
- Blueberry #464196 ΔE 0.070
- Purple #800080 ΔE 0.072
- Dark Magenta #8B008B ΔE 0.084
- Twilight #4E518B ΔE 0.086
- Light Eggplant #894585 ΔE 0.087
- Grape #7209B7 ΔE 0.090
Use #673187 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.