#623B76
Closest named color: Dark Slate Blue (#483D8B). oklch(42.5% 0.104 313.2), rgb(98, 59, 118).
Aa
White text reads best on this color (8.72:1).
About this color
#623B76 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.104 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.058 away. White text reads best on it, at 8.72:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #623B76 |
| RGB | rgb(98, 59, 118) |
| HSL | hsl(280, 33%, 35%) |
| OKLCH | oklch(42.5% 0.104 313.2) |
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 #623B76 | 8.72:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #623B76 | 2.40:1 | Fails | Lc 14.3 | Not readable |
| #623B76 text on white | 8.72:1 | AAA | Lc 89.7 | Fine for body text |
| #623B76 text on black | 2.40:1 | Fails | Lc -12.6 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE7F2
oklch(93.7% 0.016 313.6)
-
Step 200
200
#E1D3E9
oklch(88.5% 0.033 313.5)
-
Step 300
300
#CFB6DD
oklch(81% 0.06 313.5)
-
Step 400
400
#B68FCC
oklch(70.8% 0.097 313)
-
Step 500
500
#A472BE
oklch(63.2% 0.123 313.4)
-
Step 600
600
#8F59AA
oklch(55.7% 0.133 313.5)
-
Step 700
700
#794892
oklch(49% 0.125 313.2)
-
Step 800
800 (this color)
#623B76
oklch(42.5% 0.104 313.2)
-
Step 900
900
#513460
oklch(37.9% 0.08 313.4)
-
Step 950
950
#2F1E38
oklch(26.9% 0.052 313.3)
#623B76 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) | #2E4978 | 0.087 |
| Deuteranopia (no green cones) | #394C74 | 0.079 |
| Tritanopia (no blue cones) | #604453 | 0.070 |
| Achromatopsia (no color) | #4B4B4B | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #623B76
#623B76
oklch(42.5% 0.104 313.2)
- #365A16
#365A16
oklch(42.5% 0.104 133.4)
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 #623B76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.058
- Rebecca Purple #663399 ΔE 0.063
- Twilight #4E518B ΔE 0.067
- Dusk #4E5481 ΔE 0.071
- Blueberry #464196 ΔE 0.072
- Dusty Grape #545775 ΔE 0.080
- Light Eggplant #894585 ΔE 0.084
- Brownish Purple #76424E ΔE 0.085
Use #623B76 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.