#6457B3
Closest named color: Iris (#6258C4). oklch(51.5% 0.141 286.9), rgb(100, 87, 179).
Aa
White text reads best on this color (5.90:1).
About this color
#6457B3 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.141 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.027 away. White text reads best on it, at 5.90:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #6457B3 |
| RGB | rgb(100, 87, 179) |
| HSL | hsl(248, 38%, 52%) |
| OKLCH | oklch(51.5% 0.141 286.9) |
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 #6457B3 | 5.90:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #6457B3 | 3.55:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #6457B3 text on white | 5.90:1 | AA | Lc 79.3 | Fine for body text |
| #6457B3 text on black | 3.55:1 | AA large text | Lc -22.5 | 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
#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
#BDBBEB
oklch(81% 0.067 286.7)
-
Step 400
400
#9C96E1
oklch(70.7% 0.108 286.9)
-
Step 500
500
#857AD9
oklch(63.1% 0.14 287)
-
Step 600
600
#6F61C6
oklch(55.5% 0.152 286.7)
-
Step 700
700 (this color)
#6457B3
oklch(51.5% 0.141 286.9)
-
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)
#6457B3 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) | #2E67B6 | 0.071 |
| Deuteranopia (no green cones) | #2D62B1 | 0.070 |
| Tritanopia (no blue cones) | #4C6A7D | 0.117 |
| Achromatopsia (no color) | #646464 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6457B3
#6457B3
oklch(51.5% 0.141 286.9)
- #6F6B00
#6F6B00
oklch(51.5% 0.11 107.1)
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 #6457B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.027
- Slate Blue #6A5ACD ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.049
- Bluey Purple #6241C7 ΔE 0.061
- French Blue #436BAD ΔE 0.066
- Dusky Blue #475F94 ΔE 0.071
- Warm Blue #4B57DB ΔE 0.071
Use #6457B3 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.