#6554CE
Closest named color: Slate Blue (#6A5ACD). oklch(53% 0.181 284.7), rgb(101, 84, 206).
Aa
White text reads best on this color (5.65:1).
About this color
#6554CE is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.181 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.017 away. White text reads best on it, at 5.65:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #6554CE |
| RGB | rgb(101, 84, 206) |
| HSL | hsl(248, 55%, 57%) |
| OKLCH | oklch(53% 0.181 284.7) |
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 #6554CE | 5.65:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #6554CE | 3.71:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #6554CE text on white | 5.65:1 | AA | Lc 77.9 | Fine for body text |
| #6554CE text on black | 3.71:1 | AA large text | Lc -23.9 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D5D6F7
oklch(88.6% 0.045 284.1)
-
Step 300
300
#BABAF4
oklch(80.9% 0.081 284.4)
-
Step 400
400
#9894EE
oklch(70.7% 0.13 284.6)
-
Step 500
500
#8177E9
oklch(63.2% 0.166 284.6)
-
Step 600
600 (this color)
#6554CE
oklch(53% 0.181 284.7)
-
Step 700
700
#5B4BBA
oklch(49.1% 0.168 285)
-
Step 800
800
#4A3E97
oklch(42.7% 0.14 284.9)
-
Step 900
900
#3D3678
oklch(37.7% 0.109 284.7)
-
Step 950
950
#232046
oklch(26.9% 0.069 284.3)
#6554CE 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) | #006BD2 | 0.092 |
| Deuteranopia (no green cones) | #0063CB | 0.089 |
| Tritanopia (no blue cones) | #3D7089 | 0.151 |
| Achromatopsia (no color) | #676767 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6554CE
#6554CE
oklch(53% 0.181 284.7)
- #766E00
#766E00
oklch(52.9% 0.112 104.6)
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 #6554CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.017
- Iris #6258C4 ΔE 0.019
- Light Indigo #6D5ACF ΔE 0.020
- Dark Periwinkle #665FD1 ΔE 0.026
- Warm Blue #4B57DB ΔE 0.042
- Bluey Purple #6241C7 ΔE 0.042
- Blue With A Hint Of Purple #533CC6 ΔE 0.063
- Blurple #5539CC ΔE 0.064
Use #6554CE 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.