#673E89
Closest named color: Rebecca Purple (#663399). oklch(44.7% 0.124 307.4), rgb(103, 62, 137).
Aa
White text reads best on this color (7.99:1).
About this color
#673E89 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.124 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.038 away. White text reads best on it, at 7.99:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.62:1 |
| White text | 7.99:1 |
Values
| HEX | #673E89 |
| RGB | rgb(103, 62, 137) |
| HSL | hsl(273, 38%, 39%) |
| OKLCH | oklch(44.7% 0.124 307.4) |
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 #673E89 | 7.99:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #673E89 | 2.62:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #673E89 text on white | 7.99:1 | AAA | Lc 87.4 | Fine for body text |
| #673E89 text on black | 2.62:1 | Fails | Lc -14.7 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE6F5
oklch(93.5% 0.021 306.8)
-
Step 200
200
#E0D3EE
oklch(88.6% 0.039 307.2)
-
Step 300
300
#CDB5E6
oklch(81% 0.073 307)
-
Step 400
400
#B48DD9
oklch(70.8% 0.116 307.2)
-
Step 500
500
#A26ECE
oklch(63.1% 0.148 307.7)
-
Step 600
600
#8D54BB
oklch(55.6% 0.161 307.5)
-
Step 700
700
#7844A1
oklch(49.2% 0.149 307.6)
-
Step 800
800 (this color)
#673E89
oklch(44.7% 0.124 307.4)
-
Step 900
900
#4F3169
oklch(37.6% 0.097 307.1)
-
Step 950
950
#2E1D3D
oklch(26.8% 0.061 307.3)
#673E89 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) | #274F8C | 0.099 |
| Deuteranopia (no green cones) | #345187 | 0.089 |
| Tritanopia (no blue cones) | #624B5D | 0.089 |
| Achromatopsia (no color) | #515151 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673E89
#673E89
oklch(44.7% 0.124 307.4)
- #425F00
#425F00
oklch(44.6% 0.116 127.4)
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 #673E89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.057
- Twilight #4E518B ΔE 0.061
- Blueberry #464196 ΔE 0.061
- Light Eggplant #894585 ΔE 0.070
- Dusk #4E5481 ΔE 0.072
- Dusty Grape #545775 ΔE 0.086
- Warm Purple #952E8F ΔE 0.091
Use #673E89 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.