#6857B8
Closest named color: Iris (#6258C4). oklch(52.2% 0.147 288.3), rgb(104, 87, 184).
Aa
White text reads best on this color (5.76:1).
About this color
#6857B8 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.147 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.021 away. White text reads best on it, at 5.76:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.64:1 |
| White text | 5.76:1 |
Values
| HEX | #6857B8 |
| RGB | rgb(104, 87, 184) |
| HSL | hsl(251, 41%, 53%) |
| OKLCH | oklch(52.2% 0.147 288.3) |
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 #6857B8 | 5.76:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #6857B8 | 3.64:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #6857B8 text on white | 5.76:1 | AA | Lc 78.6 | Fine for body text |
| #6857B8 text on black | 3.64:1 | AA large text | Lc -23.2 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D7D6F3
oklch(88.6% 0.04 287.1)
-
Step 300
300
#BEBAED
oklch(80.9% 0.072 288.3)
-
Step 400
400
#9D95E4
oklch(70.8% 0.114 287.7)
-
Step 500
500
#8778DB
oklch(63% 0.145 288.5)
-
Step 600
600
#725FC9
oklch(55.6% 0.158 288.4)
-
Step 700
700 (this color)
#6857B8
oklch(52.2% 0.147 288.3)
-
Step 800
800
#4E408D
oklch(42.7% 0.123 288.4)
-
Step 900
900
#403770
oklch(37.6% 0.095 288.2)
-
Step 950
950
#252142
oklch(27% 0.06 287.2)
#6857B8 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) | #2A68BB | 0.079 |
| Deuteranopia (no green cones) | #2A63B6 | 0.077 |
| Tritanopia (no blue cones) | #506C7F | 0.124 |
| Achromatopsia (no color) | #666666 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6857B8
#6857B8
oklch(52.2% 0.147 288.3)
- #706E00
#706E00
oklch(52.3% 0.113 108.5)
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 #6857B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.021
- Slate Blue #6A5ACD ΔE 0.033
- Light Indigo #6D5ACF ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.058
- Deep Lavender #8D5EB7 ΔE 0.067
- Warm Blue #4B57DB ΔE 0.068
- French Blue #436BAD ΔE 0.072
Use #6857B8 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.