#6356B1
Closest named color: Iris (#6258C4). oklch(51.1% 0.139 286.9), rgb(99, 86, 177).
Aa
White text reads best on this color (6.00:1).
About this color
#6356B1 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.139 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.030 away. White text reads best on it, at 6.00:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.49:1 |
| White text | 6.00:1 |
Values
| HEX | #6356B1 |
| RGB | rgb(99, 86, 177) |
| HSL | hsl(249, 37%, 52%) |
| OKLCH | oklch(51.1% 0.139 286.9) |
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 #6356B1 | 6.00:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #6356B1 | 3.49:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #6356B1 text on white | 6.00:1 | AA | Lc 79.8 | Fine for body text |
| #6356B1 text on black | 3.49:1 | AA large text | Lc -22.0 | 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
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BDBBEB
oklch(81% 0.067 286.7)
-
Step 400
400
#9C96E1
oklch(70.7% 0.108 286.9)
-
Step 500
500
#857AD8
oklch(63.1% 0.138 287.1)
-
Step 600
600
#6F61C5
oklch(55.5% 0.15 286.9)
-
Step 700
700 (this color)
#6356B1
oklch(51.1% 0.139 286.9)
-
Step 800
800
#4C428A
oklch(42.7% 0.115 286.8)
-
Step 900
900
#3F386E
oklch(37.6% 0.09 287.2)
-
Step 950
950
#252141
oklch(27% 0.058 287.5)
#6356B1 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) | #2E65B4 | 0.070 |
| Deuteranopia (no green cones) | #2C61AF | 0.070 |
| Tritanopia (no blue cones) | #4B697B | 0.117 |
| Achromatopsia (no color) | #636363 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6356B1
#6356B1
oklch(51.1% 0.139 286.9)
- #6E6A00
#6E6A00
oklch(51.1% 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 #6356B1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.030
- Slate Blue #6A5ACD ΔE 0.046
- Light Indigo #6D5ACF ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.060
- French Blue #436BAD ΔE 0.067
- Dusky Blue #475F94 ΔE 0.068
- Twilight #4E518B ΔE 0.070
Use #6356B1 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.