#6757AB
Closest named color: Iris (#6258C4). oklch(51.3% 0.129 289.8), rgb(103, 87, 171).
Aa
White text reads best on this color (5.95:1).
About this color
#6757AB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.129 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 5.95:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.52:1 |
| White text | 5.95:1 |
Values
| HEX | #6757AB |
| RGB | rgb(103, 87, 171) |
| HSL | hsl(251, 33%, 51%) |
| OKLCH | oklch(51.3% 0.129 289.8) |
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 #6757AB | 5.95:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #6757AB | 3.52:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #6757AB text on white | 5.95:1 | AA | Lc 79.6 | Fine for body text |
| #6757AB text on black | 3.52:1 | AA large text | Lc -22.2 | 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 700.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6EF
oklch(88.5% 0.034 289.4)
-
Step 300
300
#BFBAE7
oklch(80.8% 0.063 290)
-
Step 400
400
#9F96DB
oklch(70.7% 0.1 289.6)
-
Step 500
500
#897AD1
oklch(63% 0.129 290.1)
-
Step 600
600
#7362BE
oklch(55.6% 0.139 289.6)
-
Step 700
700 (this color)
#6757AB
oklch(51.3% 0.129 289.8)
-
Step 800
800
#4F4285
oklch(42.6% 0.108 290)
-
Step 900
900
#41396A
oklch(37.7% 0.082 289.4)
-
Step 950
950
#26213E
oklch(26.9% 0.053 290.3)
#6757AB 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) | #3765AE | 0.067 |
| Deuteranopia (no green cones) | #3862A9 | 0.066 |
| Tritanopia (no blue cones) | #556879 | 0.107 |
| Achromatopsia (no color) | #646464 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6757AB
#6757AB
oklch(51.3% 0.129 289.8)
- #6C6C00
#6C6C00
oklch(51.4% 0.112 109.8)
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 #6757AB, closest first.
No curated palette has a color within ΔE 0.04 of #6757AB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- Slate Blue #6A5ACD ΔE 0.053
- Light Indigo #6D5ACF ΔE 0.057
- Dark Periwinkle #665FD1 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.065
- French Blue #436BAD ΔE 0.067
- Twilight #4E518B ΔE 0.067
- Deep Lavender #8D5EB7 ΔE 0.070
Use #6757AB 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.