#6D57BB
Closest named color: Iris (#6258C4). oklch(52.9% 0.151 290.4), rgb(109, 87, 187).
Aa
White text reads best on this color (5.62:1).
About this color
#6D57BB is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.151 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.022 away. White text reads best on it, at 5.62:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #6D57BB |
| RGB | rgb(109, 87, 187) |
| HSL | hsl(253, 42%, 54%) |
| OKLCH | oklch(52.9% 0.151 290.4) |
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 #6D57BB | 5.62:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #6D57BB | 3.73:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #6D57BB text on white | 5.62:1 | AA | Lc 77.9 | Fine for body text |
| #6D57BB text on black | 3.73:1 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F1
oklch(88.4% 0.038 290.5)
-
Step 300
300
#C0BAEA
oklch(81% 0.067 290.5)
-
Step 400
400
#A094E0
oklch(70.6% 0.11 290.5)
-
Step 500
500
#8A78D7
oklch(63.1% 0.14 290.5)
-
Step 600
600 (this color)
#6D57BB
oklch(52.9% 0.151 290.4)
-
Step 700
700
#624EA9
oklch(49% 0.14 290.4)
-
Step 800
800
#504089
oklch(42.6% 0.117 290.7)
-
Step 900
900
#42376E
oklch(37.7% 0.092 290.5)
-
Step 950
950
#272140
oklch(27.1% 0.057 291)
#6D57BB 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) | #2969BE | 0.087 |
| Deuteranopia (no green cones) | #2C65B9 | 0.083 |
| Tritanopia (no blue cones) | #576C80 | 0.125 |
| Achromatopsia (no color) | #676767 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D57BB
#6D57BB
oklch(52.9% 0.151 290.4)
- #707100
#707100
oklch(53% 0.116 110.4)
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 #6D57BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.022
- Slate Blue #6A5ACD ΔE 0.028
- Light Indigo #6D5ACF ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.038
- Bluey Purple #6241C7 ΔE 0.059
- Deep Lavender #8D5EB7 ΔE 0.060
- Warm Blue #4B57DB ΔE 0.070
- Purpley #8756E4 ΔE 0.076
Use #6D57BB 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.