#6751B3
Closest named color: Iris (#6258C4). oklch(50.7% 0.149 290.4), rgb(103, 81, 179).
Aa
White text reads best on this color (6.16:1).
About this color
#6751B3 is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.149 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.030 away. White text reads best on it, at 6.16:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #6751B3 |
| RGB | rgb(103, 81, 179) |
| HSL | hsl(253, 39%, 51%) |
| OKLCH | oklch(50.7% 0.149 290.4) |
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 #6751B3 | 6.16:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #6751B3 | 3.40:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #6751B3 text on white | 6.16:1 | AA | Lc 80.5 | Fine for body text |
| #6751B3 text on black | 3.40:1 | AA large text | Lc -21.3 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F2
oklch(88.4% 0.04 290.3)
-
Step 300
300
#C0B9ED
oklch(80.9% 0.073 290.8)
-
Step 400
400
#A093E3
oklch(70.6% 0.116 290.6)
-
Step 500
500
#8A77DB
oklch(63.1% 0.147 290.3)
-
Step 600
600
#755DC9
oklch(55.6% 0.161 290.4)
-
Step 700
700 (this color)
#6751B3
oklch(50.7% 0.149 290.4)
-
Step 800
800
#503F8D
oklch(42.7% 0.124 290.2)
-
Step 900
900
#423670
oklch(37.6% 0.096 290.5)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#6751B3 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) | #2163B6 | 0.087 |
| Deuteranopia (no green cones) | #245FB1 | 0.084 |
| Tritanopia (no blue cones) | #52667A | 0.123 |
| Achromatopsia (no color) | #616161 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6751B3
#6751B3
oklch(50.7% 0.149 290.4)
- #696A00
#696A00
oklch(50.7% 0.111 110.4)
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 #6751B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.030
- Slate Blue #6A5ACD ΔE 0.045
- Light Indigo #6D5ACF ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.068
- Warm Blue #4B57DB ΔE 0.074
- Blurple #5539CC ΔE 0.075
Use #6751B3 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.