#7556CD
Closest named color: Light Indigo (#6D5ACF). oklch(54.7% 0.176 291.5), rgb(117, 86, 205).
Aa
White text reads best on this color (5.29:1).
About this color
#7556CD is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.176 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.015 away. White text reads best on it, at 5.29:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #7556CD |
| RGB | rgb(117, 86, 205) |
| HSL | hsl(256, 54%, 57%) |
| OKLCH | oklch(54.7% 0.176 291.5) |
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 #7556CD | 5.29:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #7556CD | 3.96:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #7556CD text on white | 5.29:1 | AA | Lc 76.0 | Fine for body text |
| #7556CD text on black | 3.96:1 | AA large text | Lc -25.8 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#D9D5F5
oklch(88.6% 0.044 291.2)
-
Step 300
300
#C1B8F0
oklch(80.9% 0.079 291.9)
-
Step 400
400
#A291E9
oklch(70.7% 0.127 291.7)
-
Step 500
500
#8C73E2
oklch(63% 0.162 291.4)
-
Step 600
600 (this color)
#7556CD
oklch(54.7% 0.176 291.5)
-
Step 700
700
#6548B4
oklch(49.1% 0.164 291.6)
-
Step 800
800
#523C92
oklch(42.7% 0.136 291.4)
-
Step 900
900
#443474
oklch(37.7% 0.106 292.1)
-
Step 950
950
#271F44
oklch(26.9% 0.067 291.2)
#7556CD 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) | #006DD1 | 0.112 |
| Deuteranopia (no green cones) | #1269CA | 0.108 |
| Tritanopia (no blue cones) | #5C7089 | 0.143 |
| Achromatopsia (no color) | #6B6B6B | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7556CD
#7556CD
oklch(54.7% 0.176 291.5)
- #747600
#747600
oklch(54.6% 0.12 111)
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 #7556CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.015
- Slate Blue #6A5ACD ΔE 0.019
- Dark Periwinkle #665FD1 ΔE 0.030
- Iris #6258C4 ΔE 0.033
- Purpley #8756E4 ΔE 0.046
- Bluey Purple #6241C7 ΔE 0.059
- Deep Lavender #8D5EB7 ΔE 0.060
- Medium Slate Blue #7B68EE ΔE 0.063
Use #7556CD 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.