#6757BC
Closest named color: Iris (#6258C4). oklch(52.4% 0.153 287.2), rgb(103, 87, 188).
Aa
White text reads best on this color (5.72:1).
About this color
#6757BC is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.153 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.015 away. White text reads best on it, at 5.72:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.66:1 |
| White text | 5.72:1 |
Values
| HEX | #6757BC |
| RGB | rgb(103, 87, 188) |
| HSL | hsl(250, 43%, 54%) |
| OKLCH | oklch(52.4% 0.153 287.2) |
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 #6757BC | 5.72:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #6757BC | 3.66:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #6757BC text on white | 5.72:1 | AA | Lc 78.4 | Fine for body text |
| #6757BC text on black | 3.66:1 | AA large text | Lc -23.4 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D7D6F2
oklch(88.6% 0.038 287.2)
-
Step 300
300
#BDBAEB
oklch(80.8% 0.069 287.6)
-
Step 400
400
#9C96E2
oklch(70.8% 0.11 286.8)
-
Step 500
500
#857AD9
oklch(63.1% 0.14 287)
-
Step 600
600 (this color)
#6757BC
oklch(52.4% 0.153 287.2)
-
Step 700
700
#5E4FAC
oklch(49.1% 0.143 287.3)
-
Step 800
800
#4C428B
oklch(42.7% 0.117 286.6)
-
Step 900
900
#3F386F
oklch(37.6% 0.092 287)
-
Step 950
950
#252141
oklch(27% 0.058 287.5)
#6757BC 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) | #2469BF | 0.081 |
| Deuteranopia (no green cones) | #2363BA | 0.080 |
| Tritanopia (no blue cones) | #4C6D81 | 0.128 |
| Achromatopsia (no color) | #666666 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6757BC
#6757BC
oklch(52.4% 0.153 287.2)
- #726E00
#726E00
oklch(52.5% 0.113 107.2)
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 #6757BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.015
- Slate Blue #6A5ACD ΔE 0.027
- Light Indigo #6D5ACF ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.036
- Bluey Purple #6241C7 ΔE 0.054
- Warm Blue #4B57DB ΔE 0.063
- Deep Lavender #8D5EB7 ΔE 0.069
- French Blue #436BAD ΔE 0.074
Use #6757BC 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.