#656EE5
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.2% 0.178 276.3), rgb(101, 110, 229).
Aa
Black text reads best on this color (4.91:1).
About this color
#656EE5 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.178 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.036 away. Black text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #656EE5 |
| RGB | rgb(101, 110, 229) |
| HSL | hsl(236, 71%, 65%) |
| OKLCH | oklch(59.2% 0.178 276.3) |
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 #656EE5 | 4.27:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #656EE5 | 4.91:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #656EE5 text on white | 4.27:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #656EE5 text on black | 4.91:1 | AA | Lc -32.4 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F7
oklch(88.5% 0.044 277.1)
-
Step 300
300
#B2BDF5
oklch(80.9% 0.08 275.8)
-
Step 400
400
#8C98F0
oklch(70.7% 0.129 276.7)
-
Step 500
500
#717CEA
oklch(63% 0.164 276.3)
-
Step 600
600 (this color)
#656EE5
oklch(59.2% 0.178 276.3)
-
Step 700
700
#4B51BC
oklch(49.1% 0.165 276)
-
Step 800
800
#3E4398
oklch(42.8% 0.137 276.4)
-
Step 900
900
#343979
oklch(37.6% 0.107 276.6)
-
Step 950
950
#1E2247
oklch(27% 0.068 276.2)
#656EE5 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) | #2A80E9 | 0.064 |
| Deuteranopia (no green cones) | #0B75E2 | 0.070 |
| Tritanopia (no blue cones) | #1C899F | 0.156 |
| Achromatopsia (no color) | #7A7A7A | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #656EE5
#656EE5
oklch(59.2% 0.178 276.3)
- #937D00
#937D00
oklch(59.2% 0.122 96.7)
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 #656EE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.036
- Cornflower #6A79F7 ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.045
- Royal Blue #4169E1 ΔE 0.047
- Light Indigo #6D5ACF ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.057
- Neon Blue #4361EE ΔE 0.057
- Soft Blue #6488EA ΔE 0.065
Use #656EE5 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.