#817DCB
Closest named color: Deep Lilac (#966EBD). oklch(62.6% 0.116 284.9), rgb(129, 125, 203).
Aa
Black text reads best on this color (5.72:1).
About this color
#817DCB is a medium-light, moderately saturated purple. In OKLCH its lightness is 63%, its chroma 0.116 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Lilac (#966EBD), ΔE 0.048 away. Black text reads best on it, at 5.72:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #817DCB |
| RGB | rgb(129, 125, 203) |
| HSL | hsl(243, 43%, 64%) |
| OKLCH | oklch(62.6% 0.116 284.9) |
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 #817DCB | 3.66:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #817DCB | 5.72:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #817DCB text on white | 3.66:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #817DCB text on black | 5.72:1 | AA | Lc -37.5 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D6D7EE
oklch(88.5% 0.031 283.8)
-
Step 300
300
#BCBCE5
oklch(80.9% 0.058 285)
-
Step 400
400
#9A99D7
oklch(70.7% 0.09 284.6)
-
Step 500
500 (this color)
#817DCB
oklch(62.6% 0.116 284.9)
-
Step 600
600
#6D67B9
oklch(55.7% 0.125 284.9)
-
Step 700
700
#5B55A0
oklch(49.2% 0.117 284.9)
-
Step 800
800
#4A4682
oklch(42.8% 0.097 284.5)
-
Step 900
900
#3E3B68
oklch(37.7% 0.076 285.2)
-
Step 950
950
#24233D
oklch(27.1% 0.048 284.5)
#817DCB 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) | #6488CE | 0.044 |
| Deuteranopia (no green cones) | #6283C9 | 0.043 |
| Tritanopia (no blue cones) | #6D8C9A | 0.100 |
| Achromatopsia (no color) | #858585 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817DCB
#817DCB
oklch(62.6% 0.116 284.9)
- #938B2A
#938B2A
oklch(62.6% 0.116 104.6)
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 #817DCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.048
- Medium Purple #9370DB ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.057
- Soft Blue #6488EA ΔE 0.058
- Wisteria #A87DC2 ΔE 0.062
- Faded Blue #658CBB ΔE 0.062
- Soft Purple #A66FB5 ΔE 0.069
- Lavender Blue #8B88F8 ΔE 0.071
Use #817DCB 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.