#6357A3
Closest named color: Iris (#6258C4). oklch(50.4% 0.118 288.7), rgb(99, 87, 163).
Aa
White text reads best on this color (6.13:1).
About this color
#6357A3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.118 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.052 away. White text reads best on it, at 6.13:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.42:1 |
| White text | 6.13:1 |
Values
| HEX | #6357A3 |
| RGB | rgb(99, 87, 163) |
| HSL | hsl(249, 30%, 49%) |
| OKLCH | oklch(50.4% 0.118 288.7) |
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 #6357A3 | 6.13:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #6357A3 | 3.42:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #6357A3 text on white | 6.13:1 | AA | Lc 80.5 | Fine for body text |
| #6357A3 text on black | 3.42:1 | AA large text | Lc -21.4 | 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 700.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6ED
oklch(88.5% 0.031 289.7)
-
Step 300
300
#BFBBE4
oklch(80.9% 0.057 289.5)
-
Step 400
400
#9E97D6
oklch(70.6% 0.091 288.9)
-
Step 500
500
#877DCB
oklch(63.1% 0.116 288.5)
-
Step 600
600
#7265B8
oklch(55.7% 0.126 288.8)
-
Step 700
700 (this color)
#6357A3
oklch(50.4% 0.118 288.7)
-
Step 800
800
#4E4481
oklch(42.7% 0.099 289)
-
Step 900
900
#403A67
oklch(37.6% 0.076 288.3)
-
Step 950
950
#26223C
oklch(27% 0.048 289.9)
#6357A3 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) | #3B63A6 | 0.058 |
| Deuteranopia (no green cones) | #3B60A1 | 0.057 |
| Tritanopia (no blue cones) | #526675 | 0.099 |
| Achromatopsia (no color) | #626262 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6357A3
#6357A3
oklch(50.4% 0.118 288.7)
- #6A6900
#6A6900
oklch(50.5% 0.11 109.1)
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 #6357A3, closest first.
No curated palette has a color within ΔE 0.04 of #6357A3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.053
- Twilight #4E518B ΔE 0.053
- French Blue #436BAD ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.064
- Dusk #4E5481 ΔE 0.065
- Slate Blue #6A5ACD ΔE 0.067
- Muted Purple #805B87 ΔE 0.070
Use #6357A3 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.