#656BE8
Closest named color: Medium Slate Blue (#7B68EE). oklch(58.9% 0.186 277), rgb(101, 107, 232).
Aa
Black text reads best on this color (4.82:1).
About this color
#656BE8 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.186 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.033 away. Black text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.186) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #656BE8 |
| RGB | rgb(101, 107, 232) |
| HSL | hsl(237, 74%, 65%) |
| OKLCH | oklch(58.9% 0.186 277) |
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 #656BE8 | 4.35:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #656BE8 | 4.82:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #656BE8 text on white | 4.35:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #656BE8 text on black | 4.82:1 | AA | Lc -31.8 | 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
#D1D7F8
oklch(88.5% 0.046 277.3)
-
Step 300
300
#B2BCF7
oklch(80.8% 0.084 276.9)
-
Step 400
400
#8C97F3
oklch(70.6% 0.135 277.2)
-
Step 500
500
#727BEE
oklch(63.2% 0.17 277)
-
Step 600
600 (this color)
#656BE8
oklch(58.9% 0.186 277)
-
Step 700
700
#4C4FBF
oklch(49.1% 0.172 276.8)
-
Step 800
800
#3E419B
oklch(42.6% 0.144 277)
-
Step 900
900
#34387B
oklch(37.6% 0.112 277)
-
Step 950
950
#1E2248
oklch(27% 0.07 276.2)
#656BE8 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) | #187FEC | 0.073 |
| Deuteranopia (no green cones) | #0074E5 | 0.073 |
| Tritanopia (no blue cones) | #16889F | 0.163 |
| Achromatopsia (no color) | #797979 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #656BE8
#656BE8
oklch(58.9% 0.186 277)
- #927C00
#927C00
oklch(58.9% 0.121 96.6)
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 #656BE8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.033
- Cornflower #6A79F7 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.043
- Royal Blue #4169E1 ΔE 0.045
- Neon Blue #4361EE ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.053
- Slate Blue #6A5ACD ΔE 0.055
- Warm Blue #4B57DB ΔE 0.065
Use #656BE8 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.