#623A7D
Closest named color: Rebecca Purple (#663399). oklch(42.7% 0.114 310), rgb(98, 58, 125).
Aa
White text reads best on this color (8.67:1).
About this color
#623A7D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.114 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.050 away. White text reads best on it, at 8.67:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.42:1 |
| White text | 8.67:1 |
Values
| HEX | #623A7D |
| RGB | rgb(98, 58, 125) |
| HSL | hsl(276, 37%, 36%) |
| OKLCH | oklch(42.7% 0.114 310) |
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 #623A7D | 8.67:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #623A7D | 2.42:1 | Fails | Lc 14.5 | Not readable |
| #623A7D text on white | 8.67:1 | AAA | Lc 89.5 | Fine for body text |
| #623A7D text on black | 2.42:1 | Fails | Lc -12.7 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE7F4
oklch(93.7% 0.019 309.8)
-
Step 200
200
#E1D3EC
oklch(88.6% 0.037 310.5)
-
Step 300
300
#CEB5E1
oklch(80.9% 0.067 310.4)
-
Step 400
400
#B58ED3
oklch(70.8% 0.107 309.7)
-
Step 500
500
#A370C7
oklch(63.2% 0.137 310)
-
Step 600
600
#8E56B3
oklch(55.6% 0.149 310.2)
-
Step 700
700
#78469A
oklch(49% 0.138 309.7)
-
Step 800
800 (this color)
#623A7D
oklch(42.7% 0.114 310)
-
Step 900
900
#503264
oklch(37.6% 0.089 310.4)
-
Step 950
950
#2F1E3B
oklch(27.1% 0.056 310.1)
#623A7D 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) | #284A7F | 0.094 |
| Deuteranopia (no green cones) | #344C7B | 0.084 |
| Tritanopia (no blue cones) | #5F4556 | 0.079 |
| Achromatopsia (no color) | #4B4B4B | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #623A7D
#623A7D
oklch(42.7% 0.114 310)
- #395A01
#395A01
oklch(42.6% 0.114 130)
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 #623A7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.052
- Blueberry #464196 ΔE 0.064
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.074
- Light Eggplant #894585 ΔE 0.083
- Dusty Grape #545775 ΔE 0.086
- Purple #800080 ΔE 0.093
Use #623A7D 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.