#623C87
Closest named color: Rebecca Purple (#663399). oklch(43.7% 0.124 305.3), rgb(98, 60, 135).
Aa
White text reads best on this color (8.34:1).
About this color
#623C87 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.124 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.037 away. White text reads best on it, at 8.34:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.51:1 |
| White text | 8.34:1 |
Values
| HEX | #623C87 |
| RGB | rgb(98, 60, 135) |
| HSL | hsl(270, 38%, 38%) |
| OKLCH | oklch(43.7% 0.124 305.3) |
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 #623C87 | 8.34:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #623C87 | 2.51:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #623C87 text on white | 8.34:1 | AAA | Lc 88.5 | Fine for body text |
| #623C87 text on black | 2.51:1 | Fails | Lc -13.7 | 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
#EDE7F5
oklch(93.7% 0.02 305.3)
-
Step 200
200
#DFD3EF
oklch(88.5% 0.04 304.9)
-
Step 300
300
#CBB5E7
oklch(80.8% 0.073 304.8)
-
Step 400
400
#B28DDA
oklch(70.6% 0.116 305.7)
-
Step 500
500
#9F6FD0
oklch(63.1% 0.148 305.4)
-
Step 600
600
#8A55BD
oklch(55.6% 0.161 305.3)
-
Step 700
700
#7545A3
oklch(49.1% 0.149 305.1)
-
Step 800
800 (this color)
#623C87
oklch(43.7% 0.124 305.3)
-
Step 900
900
#4E326A
oklch(37.7% 0.097 305.3)
-
Step 950
950
#2E1E3E
oklch(27.1% 0.061 305.8)
#623C87 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) | #234D8A | 0.096 |
| Deuteranopia (no green cones) | #2F4E85 | 0.087 |
| Tritanopia (no blue cones) | #5C4A5B | 0.091 |
| Achromatopsia (no color) | #4E4E4E | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #623C87
#623C87
oklch(43.7% 0.124 305.3)
- #435B00
#435B00
oklch(43.5% 0.11 125.4)
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 #623C87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.047
- Blueberry #464196 ΔE 0.055
- Twilight #4E518B ΔE 0.061
- Dusk #4E5481 ΔE 0.072
- Light Eggplant #894585 ΔE 0.081
- Dusty Grape #545775 ΔE 0.087
- Denim Blue #3B5B92 ΔE 0.095
Use #623C87 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.