#6657A3
Closest named color: Iris (#6258C4). oklch(50.7% 0.118 290.6), rgb(102, 87, 163).
Aa
White text reads best on this color (6.07:1).
About this color
#6657A3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.118 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.052 away. White text reads best on it, at 6.07:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #6657A3 |
| RGB | rgb(102, 87, 163) |
| HSL | hsl(252, 30%, 49%) |
| OKLCH | oklch(50.7% 0.118 290.6) |
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 #6657A3 | 6.07:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #6657A3 | 3.45:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #6657A3 text on white | 6.07:1 | AA | Lc 80.2 | Fine for body text |
| #6657A3 text on black | 3.45:1 | AA large text | Lc -21.6 | 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
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6ED
oklch(88.5% 0.031 289.7)
-
Step 300
300
#C0BBE4
oklch(81% 0.058 290.6)
-
Step 400
400
#A097D6
oklch(70.8% 0.091 290.4)
-
Step 500
500
#8A7CCB
oklch(63.2% 0.117 290.8)
-
Step 600
600
#7464B7
oklch(55.6% 0.126 290.6)
-
Step 700
700 (this color)
#6657A3
oklch(50.7% 0.118 290.6)
-
Step 800
800
#504480
oklch(42.8% 0.097 290.9)
-
Step 900
900
#423A67
oklch(37.8% 0.076 290.5)
-
Step 950
950
#26223C
oklch(27% 0.048 289.9)
#6657A3 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) | #3C64A6 | 0.062 |
| Deuteranopia (no green cones) | #3D61A1 | 0.060 |
| Tritanopia (no blue cones) | #566675 | 0.098 |
| Achromatopsia (no color) | #626262 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6657A3
#6657A3
oklch(50.7% 0.118 290.6)
- #696A00
#696A00
oklch(50.7% 0.111 110.4)
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 #6657A3, closest first.
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 0.056
- Twilight #4E518B ΔE 0.057
- French Blue #436BAD ΔE 0.066
- Slate Blue #6A5ACD ΔE 0.066
- Muted Purple #805B87 ΔE 0.066
- Dusk #4E5481 ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.068
Use #6657A3 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.