#623C74
Closest named color: Dark Slate Blue (#483D8B). oklch(42.5% 0.099 314.1), rgb(98, 60, 116).
Aa
White text reads best on this color (8.68:1).
About this color
#623C74 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.099 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.061 away. White text reads best on it, at 8.68:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.41:1 |
| White text | 8.68:1 |
Values
| HEX | #623C74 |
| RGB | rgb(98, 60, 116) |
| HSL | hsl(281, 32%, 35%) |
| OKLCH | oklch(42.5% 0.099 314.1) |
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 #623C74 | 8.68:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #623C74 | 2.41:1 | Fails | Lc 14.4 | Not readable |
| #623C74 text on white | 8.68:1 | AAA | Lc 89.6 | Fine for body text |
| #623C74 text on black | 2.41:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE7F2
oklch(93.7% 0.016 313.6)
-
Step 200
200
#E1D3E8
oklch(88.4% 0.032 314.7)
-
Step 300
300
#CFB6DB
oklch(80.9% 0.058 314.8)
-
Step 400
400
#B68FC9
oklch(70.7% 0.093 314.4)
-
Step 500
500
#A372BB
oklch(62.9% 0.119 314.1)
-
Step 600
600
#8E5AA7
oklch(55.6% 0.128 314)
-
Step 700
700
#794990
oklch(49.1% 0.121 313.9)
-
Step 800
800 (this color)
#623C74
oklch(42.5% 0.099 314.1)
-
Step 900
900
#50345E
oklch(37.6% 0.077 313.7)
-
Step 950
950
#2F1F37
oklch(27% 0.048 313.9)
#623C74 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) | #314976 | 0.083 |
| Deuteranopia (no green cones) | #3B4C72 | 0.075 |
| Tritanopia (no blue cones) | #614452 | 0.067 |
| Achromatopsia (no color) | #4B4B4B | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #623C74
#623C74
oklch(42.5% 0.099 314.1)
- #365A1B
#365A1B
oklch(42.6% 0.1 134.2)
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 #623C74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.061
- Twilight #4E518B ΔE 0.067
- Rebecca Purple #663399 ΔE 0.067
- Dusk #4E5481 ΔE 0.069
- Blueberry #464196 ΔE 0.074
- Dusty Grape #545775 ΔE 0.077
- Brownish Purple #76424E ΔE 0.081
- Light Eggplant #894585 ΔE 0.084
Use #623C74 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.