#7A57CB
Closest named color: Light Indigo (#6D5ACF). oklch(55.2% 0.173 293.9), rgb(122, 87, 203).
Aa
White text reads best on this color (5.18:1).
About this color
#7A57CB is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.173 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.022 away. White text reads best on it, at 5.18:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.05:1 |
| White text | 5.18:1 |
Values
| HEX | #7A57CB |
| RGB | rgb(122, 87, 203) |
| HSL | hsl(258, 53%, 57%) |
| OKLCH | oklch(55.2% 0.173 293.9) |
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 #7A57CB | 5.18:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #7A57CB | 4.05:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #7A57CB text on white | 5.18:1 | AA | Lc 75.3 | Fine for body text |
| #7A57CB text on black | 4.05:1 | AA large text | Lc -26.4 | Dividers and decoration only |
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 600.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C3B8EF
oklch(81% 0.077 293.8)
-
Step 400
400
#A591E6
oklch(70.8% 0.123 293.8)
-
Step 500
500
#9073DF
oklch(63.2% 0.158 293.7)
-
Step 600
600 (this color)
#7A57CB
oklch(55.2% 0.173 293.9)
-
Step 700
700
#6848B1
oklch(49.2% 0.16 293.7)
-
Step 800
800
#553C8F
oklch(42.8% 0.132 294)
-
Step 900
900
#463472
oklch(37.7% 0.103 294.3)
-
Step 950
950
#291F43
oklch(27.1% 0.065 294.4)
#7A57CB 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) | #156ECF | 0.114 |
| Deuteranopia (no green cones) | #246BC8 | 0.107 |
| Tritanopia (no blue cones) | #657089 | 0.137 |
| Achromatopsia (no color) | #6D6D6D | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A57CB
#7A57CB
oklch(55.2% 0.173 293.9)
- #727900
#727900
oklch(55.1% 0.124 113.7)
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 #7A57CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.022
- Slate Blue #6A5ACD ΔE 0.026
- Dark Periwinkle #665FD1 ΔE 0.036
- Iris #6258C4 ΔE 0.040
- Purpley #8756E4 ΔE 0.044
- Deep Lavender #8D5EB7 ΔE 0.051
- Medium Slate Blue #7B68EE ΔE 0.063
- Amethyst #9B5FC0 ΔE 0.066
Use #7A57CB 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.